The possible genotype and phenotype of both the green parrots is 3.
Lets represent the alleles of the blue feathered parrot as 'aa'
Lets represent the alleles of yellow feathered parrot as 'bb'
Now, if we use the Punnett's Square,
= aa X bb
= aa, ab, ab, bb
Since it is incomplete dominance, and the heterozygous situation represents green feathered parrot, we take the 'ab' as green feathered parrot.
The phenotype,
= aa = 1
= ab = 2
= bb = 1
Since, there are 3 varieties, the phenotype count is 3.
The genotype,
= aa = 1
= ab = 2
= bb = 1
Since, there are 3 varieties, the genotype count is 3.
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a student was studying physical and chemical changes. the student carried out some procedures in the laboratory and recorded observations. for one of the procedures, the student concluded that a physical change took place, but not a chemical change. which of the following could have been the results of the procedure?
In this process Metal was transformed from a physical change of cube into a flat sheet.
A proton is transferred from H2O to NH3 in this acid-base reaction. Heat is created as the process seen above continues. The precipitate's melting point is high. Yes, according to the color changes & bubbles, new metal did indeed arise. A physical phchange in hue and the appearance of bubbles are two indications of a chemical shift.The five elements of chemical change are: color change, precipitate or gas production, gas formation, odor change, and temperature change. Yes, as shown by the change in color and bubbles, new metal did indeed arise. A change in hue and the appearance of bubbles are two indications of a chemical shift. The five criteria of chemical change are: color change, precipitate or gas production, odor change, and physical change.
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Which of the following correctly ranks the levels of ecological hierarchy from least inclusive tomost inclusive? Organism, Population, Community, Ecosystem, Biome, BiosphereA group of snails (of the same species) lives in a garden that also includes beetles and tomato plants.What level(s) of ecological organization does the group of snails belong to? Select all that apply.
Organism, Population, Community, Ecosystem, Biome, and Biosphere make up the ecological hierarchy in order of least to most inclusive. The snail population is made up of the following groups.
What is a community of creatures from the same species coexisting in a place?A population is a collection of organisms belonging to the same species that are present in the same place and time. Population ecologists examine how populations evolve over time as well as their size, density, and organization.
From smallest to greatest, what are the six organizational levels?Chemical, cellular, tissue, organ, organ system, and organism levels are the six general organizational levels, listed in order of largest to smallest. The smallest and lowest level of organization in a living system is thought to be chemicals, which can range in size from the smallest atoms to the largest macromolecule.
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How can textual aids help readers?.
To better understand the main idea of each section, write additional information (text) that is explained in the material. It's hard to tell from photos and illustrations.
What is Text aid and why it Matters?They are educational instruments, tools, or materials to support and facilitate understanding of the text. These are mostly graphic outlines or images that give you a general idea.It helps students understand stories, themes and topics. They emphasize what they focus on. How can Textual Aids help readers?Text aids refer to non-text elements that help the reader understand the content of the text. It also refers to elements that stand out from the body text, such as titles and subtitles, bold, italics, and underlining. Non-textual elements include diagrams, maps, tables, graphs, and charts.
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What are the basic food and beverage service rules?.
The basic food and beverage service rules include Bringing food to the guest table if it is not a buffet service and serving from the left side.
In order to guarantee the availability of healthy food for human consumption, the Food Safety and Standards Authority of India (FSSAI) was established to laying down scientifically based standards for food items and to regulate their production, storage, distribution, sale, and import. If there is no buffet, bring food to the guest table. In the event of formal dining, serve the food to the guest on their left side. In the event of casual dining, prepare the food plates from the kitchen and place them on the guest table. Ask your guests if they require assistance serving the food. These are some of the basic food and beverage service rules.
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Design a controlled experiment to test the effect of varying pH, temperature, or enzyme concentration.
Put 5 ml of catalase in the freezer for as long as necessary to achieve total freezing in order to examine how temperature affects enzymes. Afterward, incorporate 1 mL of catalase into 10 mL of 1.5% H2O2 (which is in a 50mL beaker). Observe and document results
One must first run the experiment at room temperature, which will serve as the control group, in order to assess the various effects of temperature on the enzyme concentration. The experiment must then be carried out at various temperatures (both higher and lower than room temperature), and the results must be compared to those obtained at room temperature. The impact of varying pH and enzyme concentration can also be researched.
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What happens after Hamlet stabs Polonius?.
Polonius was behind Gertrude's curtain to listen in, but once Gertrude does so, Polonius cries out in alarm. When Hamlet hears him, he kills him by stabbing him through the curtain.
Hamlet fatally stabs Polonius through the curtain after mistaking him for Claudius. Hamlet attacks his mother for marrying Claudius so soon after her husband's passing, showing no remorse in the process.
When Hamlet lowers the arras, he finds Polonius's body. Instead of killing the king and getting his vengeance, he killed the comparatively innocent Polonius instead. He says goodbye to the elderly man.
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doesn't it seem weird that squid belong to phylum mollusca? they're clearly not clams, mussels, snails, scallops, or oysters. so why do biologists place them in this phylum? recall your studies of the squid dissection. which of the following anatomical features of the squid demonstrates that it is closely related to its molluscan cousins? group of answer choices mantle tentacles ink sac beak
The onslaught lasts for a few seconds before the mackerel swiftly disperse in all directions. In the end, a pair of squid quickly immobilize the fish with a toxic bite after capturing two of them.
Larger predators like whales prey on squid because they are quick and nimble aquatic predators. Squid have highly developed eyes and a learning-capable brain. Squid are molluscs that belong to the Cephalopoda class. Along with cuttlefish, nautiluses, and octopuses, this class includes them. The Mollusca phylum's most developed class is comprised of cephalopods. Due to the sophisticated cephalopod features, the similarities between squid and other mollusc groups are not at all immediately apparent.
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describe the four primary tissue types by clicking and dragging each word on the left into the appropriate blanks on the right.
These are the correct arrangement of four primary tissue types to complete the appropriate blanks on the right:
Sentence 1: brain – excitableSentence 2: epidermis – epithelialSentence 3: muscular – contractionSentence 4: connective.What do the correct, completed sentences about four primary tissue types from fill-in-the-blank above?Primary tissues are groups of similar cells that are responsible for specific functions. There are 4 primary tissue types: connective, epithelial, muscle, and nervous tissue.
From the question above, we can arrange the correct, completed sentence as stated below:
“Tissue found in the (brain) that contains (excitable) cells is called nervous tissue.”“Layers of closely packed cells that are found covering or lining body surfaces, as in the (epidermis) of the skin, are called (epithelial) tissue.”“(Muscular) tissue consists of excitable cells that are specialized for (contraction) and found in the heart.”“(Connective) tissue usually has more matrix than cells. Some forms of this are bone, adipose, and blood.”This question is incomplete. The complete question is as follows:
Describe the four primary tissue types by clicking and dragging each word on the left into the appropriate blanks on the right!
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which class of nephron is crucially important in establishing a salt concentration gradient in the kidney so that urine concentration can be regulated?
Cortical nephrons play a critical role in establishing a salt concentration gradient in the kidney, allowing urine concentration to be regulated.
What are Cortical nephrons?The cortical nephron is a microscopic structural and functional unit of the kidney with a short Henle loop that only penetrates the outer renal medulla. These nephrons' Malpighian corpuscles are found in the outer part of the renal cortex. All vertebrates have cortical nephrons. Cortical nephrons account for approximately 85% of all nephrons in the human kidney. They perform the majority of the human body's regulatory and excretory functions. The glomerulus is a small network of capillaries located at the beginning of each cortical nephron in the outer renal cortex. The glomerulus' primary function is to filter blood that enters the renal arterial circulation via an afferent arteriole.
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Which type of virus can use all host polymerases for transcription and replication?.
Answer:
DNA viruses
Explanation:
a firefighter breathes in air normally as he enters a building following an explosion and fire. he has a meter that predicts the po2 will approximate 15 mm hg in his tissue fluids as he actively moves about the room.
Hemoglobin saturation of the fire fighter will be roughly one oxygen per hemoglobin, necessitating the use of an external air tank.
Including heavy metals, aldehydes, hydrogen chloride, dichlorofluoromethane, and certain particles, fire fighters are routinely exposed to high concentrations of dangerous substances. The activation of numerous diseases has been linked to many of these elements in fire fighters. The current study aims to investigate how exposure to fire smoke affects serum levels of heavy metals and potential effects on iron functions compounds, total iron binding capacity, transferrin saturation percentage, ferritin, unsaturated iron-binding capacity blood hemoglobin, and carboxy hemoglobin.
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Which of the following statements are true concerning how an influenza virus identifies and infects its target cell? Select all that apply Check All That Apply "Proteins located on the capsid of the virus allow the virus to attach to molecules on the surface of a host cel Most viruses are nonspecific to the type of cells they infect The capsid proteins of a virus may attach to protein receptors on the surface of the host cell To identify a host cell, a virus is able to produce cytoplasmic extensions that are able to fuse with the plasma membrane of Most viruses are nonspecific to the type of cells they infect The capsid proteins of a virus may attach to protein receptors on the surface of the host cell To identify a host cell, a virus is able to produce cytoplasmic extensions that are able to fuse with the plasma membrane of the host cell allowing materials to pass between the host and the virus Upon identification of a specific protein molecule on the surface of the host cell the virus can integrate into the host cell
Answer:
The influenza virus enters the host cell by having its hemagglutinin bind to the sialic acid found on glycoproteins or glycolipid receptors of the host.which one of the following statements about reflexes is true? reflexes always have only the one synapse. reflexes always have skeletal muscle as the effector. reflexes are only seen in the somatic nervous system. reflexes require information to be detected by receptors.
Reflexes require information to be detected by receptors, is true.
What is a reflex arc and what does it comprise of?A reflex arc is a special type of neural circuit that begins in sensory neurons in receptors (such as pain receptors in fingertips) and ends in motor neurons in effectors (such as skeletal muscles). Sensory neurons send electrical impulses to relay neurons in the CNS spinal cord. Motor neurons send electrical impulses to effectors. An effector produces a response (muscle contracts to move hand away).
The simplest assembly of the reflex arc consists of receptors, interneurons (or adjusters), and effectors. Together these units form a functional group. Sensory cells transmit input (afferent impulses) from receptors to central interneurons, which in turn make contact with motor neurons.
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can you match the characteristics with the correct organelle? sort each structure or function depending on whether it describes a chloroplast or a mitochondrion.
The classic role of mitochondria is oxidative phosphorylation, which generates ATP by making use of the strength released at some point in the oxidation of the food we devour.
Mitochondria ( single- mitochondrion) are the power residence of the cellular. it is a double membrane certain organelle where the TCA cycle and oxidative phosphorylation occurs to supply the ATP ( electricity foreign money of the cellular). it's far observed in all eukaryotic organisms and might convert meals electricity into chemical strength saved in phosphate bonds in ATP molecules. CO2 is produced as a byproduct of cell breathing from mitochondria.
Chloroplast is the green pigment-containing organelle in photosynthetic organisms like plants and algae. these organelles comprise a fluid-stuffed area known as stroma wherein membranous sacs called thylakoids are saved stalked. it's miles on this membrane that photosynthetic pigment chlorophyll is observed and this is the website online of light reaction of photosynthesis takes place. darkish response of photosynthesis takes place in the stroma.O2 is released as a byproduct. And photosynthesis converts solar strength into chemical strength saved in chemical bonds in carbohydrates.
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Which portion of a gene has the greatest effect on the timing and amount of protein produced in a cell?.
The promoters of a gene have the greatest impact on how quickly and how much protein is produced in a cell. RNA polymerase begins transcription of a gene at specific DNA sequences called promoters.
When does the majority of gene regulation occur?Transcription
Transcription, the process by which information from a gene's DNA is converted to mRNA, represents the stage where gene regulation occurs most frequently, though it can occur at any point during gene expression. Proteins called transcription factors become active when cells or the environment send them signals.
The most prevalent method of gene control is transcriptional regulation. Because of the way transcription factors work, each gene can express itself differently in various cell types and throughout development.
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starting at a single molecule of 1,3-bisphosphoglycerate, how much atp would be made in glycolysis alone?
In the process of glycolysis, glucose eventually decomposes into pyruvate and energy, yielding a total of two ATP.
Glycolysis: What is it?Glycolysis is the process by which glucose is metabolized to produce energy. It produces two pyruvate molecules, ATP, NADH, and water. Because it takes place in the cytoplasm of a cell, it doesn't require oxygen to occur. Both aerobic and anaerobic organisms experience it.
Sugar molecules are broken down during glycolysis to release energy needed for cellular metabolism. The cell's cytoplasm is where it takes place. The primary goal of glycolysis is to create countless ATP molecules, which are then used for different types of cellular metabolism.
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Membrane curvature is influenced by the differential lipid composition of the two membrane monolayers. Which factor do you think has the largest impact on the curvature of biological membranes?.
Size of the lipid head group has the largest impact on the curvature of biological membranes. So option (d) is the correct answer.
The properties of lipid membranes are primarily determined by the lipid composition of the membrane. The size of the lipid head group and glycerophospholipid tail influences the thickness, curvature and shape of the bilayer. For example, phosphatidylcholines have large head groups and form liquid crystalline lipid bilayers. The lipid headgroup becomes conical, which causes lateral strain.
Lipids are any of a variety of organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes that function as energy storage molecules and chemical messengers.
Lipids consist of fats, oils, waxes, phospholipids, and steroids.
Complete question:
Membrane curvature is influenced by the differential lipid composition of the two membrane monolayers. Which factor do you think has the largest impact on the curvature of biological membranes?
(a) amount of cholesterol
(b) charge of the lipid head group
(c) length of the hydrocarbon tails
(d) size of the lipid head group
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1. In the first minute of her talk, Earle lists several ways the oceans have changed in the past 50 years because of human impact.
2. What are some of these ways? Earle says, “No blue, no green.” Explain what she means by this.
3. What effect are trawlers having on our oceans?
4. What are National Marine Sanctuaries? Briefly describe them and why we need more than just these sanctuaries.
5. What is Earle’s wish? What is needed to accomplish this?
1. She makes the statement that more than 90% of the large fish in the ocean have been caught and eaten.
2. We cannot have the green land without the ocean and other blue water sources. Earle likens a dry Earth to Mars. Without the ocean, there would be no life on Earth.
3. By effectively rototilling the bottom, trawling disrupts the natural environment of the seafloor.
4. National marine sanctuaries are unique locations that guard critical marine ecosystems across the country.
5. "I wish you would ignite public support for a global network of marine protected areas by using all available tools, including films, expeditions, the Web, new submarines, and a campaign:
What is “No blue, no green"?that the coral reefs are deteriorating and going extinct, nearly half of them. She also talks about how the loss of oxygen is killing off the ecosystem and fauna.
All of the creatures and plants that live at the bottom are harmed, if not completely destroyed, by the disruption of animal burrows and root systems.
Many sanctuaries are home to ancient shipwrecks and other archaeological treasures. Some sanctuaries serve as the breeding and feeding sites for endangered whales.
No water means no life. No blue, no green," declared Dr. Sylvia Earle, a renowned oceanographer, deep sea explorer, and field researcher. Without safeguarding the water and life that cover 71% of the surface of the Earth, we cannot create a more wholesome, sustainable food system.
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What are 3 point mutations examples?.
There are three types of point mutations: deletions, insertions, and substitutions. Deletions happen when a nucleotide is removed. Insertions occur when a new nucleotide is added to the genome. Substitutions occur when one nucleotide is exchanged for another.
Which is the best example of mutation?
Cystic fibrosis is an example of a genetic disorder. A single gene mutation causes the body to produce thick, sticky mucus, which clogs the lungs and blocks ducts in digestive organs. Cancer is a disease in which cells proliferate uncontrollably and form abnormal cell masses (called tumors).
What exactly is a point mutation, and how does it happen?
A point mutation is a single base change in DNA. It can occur as a result of natural replication errors or from exposure to carcinogens, which are substances that can cause mutations.
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In the context of natural selection, fitness refers to reproductive success. the physical health of a population. the physical health of an individual. the variation in traits within the population. mutations that benefit an organism's survival.
In the context of natural selection, fitness refers to mutations that benefit the survival of organisms.
What is natural selection?Natural selection is a theory governing the existence of organisms in a community. This theory was propounded by Charles Darwin and can be summarized as follows:
Only individuals of a species that are physically fit survive in an environment and are able to reproduce and contribute to the future generations of the species.The future generations inherit the fitness genes from the parent.Unfit individuals of the same species gradually fade off the population as they contribute less and less to future generations of the species.Thus, the natural selection theory primarily has to do with the changes that happen at the gene level within individuals which confer their survival in their environment rather than the reproductive success of individuals.
These changes that happen to individuals' genes confer survival are known as beneficial mutations. Some mutations may be harmful and decrease the physical fitness of organisms. Natural selection deselect such mutations and ensure that they do not linger for long in the population.
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The measurement of ________ compares the density of urine to the density of water.
The estimation of specific gravity looks at the thickness of urine to the thickness of water.
As it goes through the nephrons and down the renal tubules of the kidney, urea, alongside water and other side-effects, makes pee. the two ureters. From the kidneys to the bladder, the urine goes through these minuscule cylinders. The excretory organs eliminate a few extra, habitually toxic mixtures from the circulatory liquids and remove them from the body through urine, which is a fluid or semisolid arrangement of metabolic squanders. Pee frequently mirrors an organic entity's requirement for water with regard to structure.
The distinction between an item's thickness and that of a standard substance is its specific gravity. Contingent upon its worth, the specific gravity could demonstrate whether an item will drift or sink in our reference substance. A research facility test called urine-specific gravity uncovers the centralization of all substance particles in the pee.
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physical anthropologist frans de waal studies living primate groups including macaques, chimpanzees, and bonobos in order to better inform our understanding of human instinctual behavior. identify the behaviors that de waal observed in these primates after conflicts occurred.
Behaviors observed, in primates after conflicts:
ReconciliationIncreased attractionBehaviors not observed in primates after conflict:
Ongoing aggressionDistancingExplain Frans de waal's study of primates.Dr. Frans B. M. de Waal is a Dutch-American biologist and primatologist known for his work on primate behavior and social intelligence. His first book, Chimpanzee Politics (1982), likened the embrace and intrigue of chimpanzees engaged in power struggles to the embrace and intrigue of human politicians. With this book, de Waal broke longstanding scientific taboos, making him one of the first scientists to study animals as cognitive and emotional beings, rather than mere learning machines. Since then, de Waal has become one of the most influential researchers on social life in monkeys and apes.
Primates were divided into
The Strepsirrhines (includes the lemurs, galagos, and lorisids)
The Haplorhines (includes the tarsiers)
The Simians (monkeys, apes and the humans)
According to de Waal “pillars of morality” are reciprocity, fairness, empathy, and compassion.
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A typical human cell expresses about what portion of its protein-coding genes at any given time?.
A typical human cell expresses about 20 % of its protein-coding genes at any time.
Proteins are created by genes, and proteins control how cells function. Therefore, a cell's capabilities are determined by the hundreds of genes that are expressed in that cell. Additionally, the cell can potentially regulate each stage of the informational chain from DNA to RNA to protein by altering the quantity and kind of proteins it produces. This allows the cell to self-regulate its operations.
A protein's concentration in a cell at any one time reflects the equilibrium between its metabolic pathways for synthesis and degradation. Recall that protein creation begins with transcription (DNA to RNA) and continues with translation on the synthetic side of this balance (RNA to protein). In order to control these processes, it is essential to know what proteins are present in a given organism.
Hence, protein are expressed on their need for limited time.
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what are the four privacy torts that still exist today?
Answer: Public disclosure/Private Facts, Intrusion, Misappropriation, False Light.
Explanation:
The four types of privacy torts that still exist today are:
1) Interference with a person's privacy or solitude;
2) Public exposure of humiliating personal information about a person;
3) Publicity that presents a person in a negative light in the media; and
4) Appropriation of the person's name or likeness for the defendant's benefit.
What are privacy torts?An individual's privacy being violated is referred to as a privacy tort. False light, private facts, appropriation, and intrusion are the four main components that make up a privacy tort.
Trespass to reality is not one of the aforementioned but is excluded. People would do well to use the means made available by this clause when they feel that their privacy has been abused. Legal action can be taken to settle disputes rather than resort to violence.
Therefore, the four privacy r torts are Public disclosure/Private Facts, Intrusion, Misappropriation, and False Light.
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of the following alloys pick the one(s) that may be strengthened by heat treatment cold work or both.
a. AZ31B magnesium
b. 6061 aluminum
c. C17200beryllium copper
d. R50500 titanium
e. 304 stainless steel
f. 6150 steel
g. C51000 phosphor bronze
h. lead
The following alloys pick the one(s) that may be strengthened by heat treatment cold work or both is Inconel 600 and nickel 200.
What happen when one will use Galvanic Series?In order to make this prediction one will have to make use of the Galvanic series of metals in seawater table. The closer two metals are in the table the less likely they will corrode. The further away two metals are in the table the more likely they will corrode.
(a) Aluminum and magnesium together, there is possibility of corrosion.
(b) For the zinc-low carbon steel couple, corrosion is possible, and zinc will corrode.
(c) For Inconel 600 and nickel 200, corrosion is unlikely as both alloys appear closer on the table.
(d) The titanium and 304 stainless steel pair, the stainless steel will corrode. As long as it is below Titanium in both its active and passive states.
(e) For the cast iron and 316 stainless steel pair, the cast iron will corrode since it is below stainless steel in both active and passive states.
Therefore, The following alloys pick the one(s) that may be strengthened by heat treatment cold work or both is Inconel 600 and nickel 200.
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Crossing an individual who is homozygous dominant for a trait with an individual whose genotype is unknown will most likely produce which set of offspring?.
All of the offspring will have at least one dominant allele if the parent with the unknown genotype is homozygous dominant.
What kind of cross is used to identify a person's genotype when they possess the trait's dominant characteristics?A testcross looks at an organism's genotype that exhibits the dominant phenotype for a particular trait. An organism with an unknown genotype but a dominant phenotype is crossed with another organism that has the same trait in homozygous recessive form to create a testcross.
In particular, a test cross—a type of breeding analysis—is required to identify the underlying genotype of an organism with a dominant phenotype. Gregor Mendel also created the test cross, which is a crucial tool.
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Is blue eyes genetic or hereditary?.
The laws of genetics nation that eye coloration is inherited as follows: If both mother and father have blue eyes, the kids could have blue eyes. The brown eye form of the attention-shade gene (or allele) is dominant, while the blue eye allele is recessive.
Each parent will skip one copy of their eye color gene to their baby. In this situation, the mom will usually pass B and the dad will always pass b. this indicates all of their children could be Bb and have brown eyes. every baby will display the mother's dominant trait.
Scientists concluded that each blue-eyed person in the sector today can trace their ancestry back to an unmarried ECU who probably lived approximately 10,000 years ago within the Black Sea location and who first advanced a selected mutation that debts to the now considerable iris color.
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In counting the electron domains around the central atom in vsepr theory, a __________ is not included.
Core level electron pair is not included when counting the electronic domains around the central atom in vsepr theory.
When counting the electron domains around the central atom in VSEPR theory, electron pairs at the nuclear level are not included. A nuclear-level electron pair is an electron that is not in the valence shell of an atom. you get closer to the core. They do not participate in binding.VSEPR stands for valence shell electron pair repulsion theory. VESPR is a model for predicting the shape of molecules based on reducing the electrostatic repulsion of molecular valence electrons around a central atom. Valence shell electron pair repulsion theory is a model used in chemistry that predicts the shape of individual molecules from the number of electron pairs surrounding a central atom. It is also known as the Gillespie-Nyholm theory, after its two main developers, Ronald Gillespie and Ronald Nyholm
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the ninth week after conception until birth, the period during which the organs of the develping person grow in size and mature in functioning.
By nine week, the fetal period begins and involves the growth and differentiation of anatomical structures. The fetal period lasts until birth.
Ninth week is also considered as first trimester ,the pregnancy hormones at this stage are flooding in the body, which can cause unwell feeling at this stage this is termed as an embryo from conception until the eighth week of development. After the eighth week, it's called a fetus until it's born.
This development occurs inside the uterus which is hollow, pear-shaped organ located in a woman's lower abdomen, between the bladder and the rectum, that sheds its lining each month during menstruation.
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which of the following anatomical structures is/are part of the tract within which sperm travels from the testis to outside of the body? check all that apply (letter and answer) A. seminal vesicle B. prostatic urethra C. bulbourethral gland D. ductus deferensE. efferent ductules
Prostatic urethra, ductus deferens, efferent ductules are part of the tract within which sperm travels from the testis to outside of the body.
What is Sperm?In anisogamous modes of sexual reproduction, the male reproductive cell, or gamete, is called the sperm. Red algae and some fungi create non-motile sperm cells known as spermatia, while animals produce spermatozoa, which are sperm cells with a tail known as a flagellum.
What is testis ?The testes are where sperm and testosterone, the main hormone involved in male sex, are produced. Seminiferous tubules, coiling collections of tubes, are found inside the testes.
Hence, Prostatic urethra, ductus deferens, efferent ductules are part of the tract within which sperm travels from the testis to outside of the body.
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