Answer:
The term for a plant that has two kinds of spores, microspores that develop into male gametophytes and megaspores that develop into female gametophytes, is "heterosporous."
What is the difference between a quadrant and a transect
Answer:
In transect surveys, students stretch a string across a piece of ground, stake each end, and count the living things that are either underneath the string or within arm's length of it. In quadrat surveys, students map out a square piece of ground and survey the living things lying within the square.
Explanation:
How many chromosomes do you have in each of your body cells?
Answer:
46
Explanation:
Normally, each cell in the human body has 23 pairs of chromosomes (46 total chromosomes). Half come from the mother; the other half come from the father. Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born.
kangaroo care provided to the low birth-weight babies demonstrates the value of _____ when caring for at-risk newborns.
Kangaroo care provided to the low birth-weight babies demonstrates the value of parental care when caring for at-risk newborns as presented in Option A, as parental care is different from that provided by the different animals.
What is parental care?Parental care is seen in mammals and other classes as they care for newborn babies, such as humans who take great care of their babies or kangaroos who care for their babies after they are born and provide them with the nutrition they require to grow.
Hence, kangaroo care provided to the low birth-weight babies demonstrates the value of parental care when caring for at-risk newborns, as presented in Option A.
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The question is incomplete, the complete question is below
kangaroo care provided to the low birth-weight babies demonstrates the value of _____ when caring for at-risk newborns.
A)parental care
B)no parental care
Why do you think it is advantageous for cells to go through the different phases of the cell cycle in an ordered way?.
It is good since all cells will go through the same process of division and will not expand out of proportion. If they did all of these things at once, they'd have a better chance of losing the cell.
What do you mean by a Cell?A cell may be defined as the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
A cell always goes through the different phases of the cell cycle in an ordered way. This is because a cell must have to divide and differentiate properly. But if a cell underwent all of the activities of the cell cycle at once, it is very tough for the cell to perform which activity at first, in this way cell loses its structure, and its identity and is finally damaged.
Therefore, if a cell underwent all of these activities at once, there will be a risk of damaging the cell.
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Full Question: Why do you think it is advantageous for cells to go through the different phases of the cell cycle (such as copying their genes or building the materials needed for division) in an ordered way? What might happen if a cell underwent all of these activities at once?
Consider this animal cell. The organelles in an animal cell are labeled. Part i is the round structure at the center of the cell. Which organelle is labeled i?cell membraneribosomeendoplasmic reticulumnucleus.
Take a look at this animal cell. An animal cell's organelles have labels. The spherical object in the cell's center is the part I. The organelle that is labeled is the nucleus. The correct answer is option(d).
Animal cells are conventional of the eukaryotic container, middle from two points a body tissue sheath and holding a sheet-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a container divider.
Animal cells are the construction blocks that constitute all living animals in the animal world. They present party structure, consume fibers to convert to strength and help mammals move. They further hold all the inherited material of a creature and can form copies of themselves. The core is an organelle about most eukaryotic cells, the irregularity being rose ancestry cells. In animal cells, it is two together the best and stiffest organelles and is surely capable of being traced by light microscopy. The average carnal core has a width of ~6µm and seizes about 10% of the total container capacity.
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The complete question is:
Consider this animal cell. The organelles in an animal cell are labeled. Part i is the round structure at the center of the cell. Which organelle is labeled I?
a) cell membrane
b) ribosome
c) endoplasmic reticulum
d) nucleus.
Answer:
D: nucleus
Explanation:
I just did it
Which of the following is a benefit of using chemical signals rather than electrical signals to send messages to the next neuron?
O Electrical signalsO interneuronO hippocampus
Electrical signals are not strong enough to get through the synaptic cleft. Neurons are too far apart for an electrical signal to travel. The variety of responses produced can be expanded due to the simultaneous release of many neurotransmitters. These are the advantages of using chemical impulses rather than electrical signals.
What are neurotransmitters?Neurons use neurotransmitters to interact with one other and their target tissues during the synaptic transmission process (neurotransmission).
Nerve endings synthesize neurotransmitters, which are then released from them into the synaptic cleft. From there, receptor proteins in the cellular membrane of the target tissue bind to neurotransmitters. The target tissue is stimulated, blocked, or otherwise functionally altered.
Among the more than 40 neurotransmitters found in the human neurological system, acetylcholine, norepinephrine, dopamine, gamma-aminobutyric acid (GABA), glutamate, serotonin, and histamine are some of the most significant.
What is synaptic cleft?The synapse contains a space called the synaptic cleft. It is a component of the neural network. It refers to the region where neurotransmitters move back and forth between neurons. The synaptic cleft, which is a component of the neural pathway, aids in facilitating communication between the brain and nervous system.
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Please someone please help me :(
The binomials for the length and width (4x - 5) and (3x + 3) respectively.
The length of the short side is 12, option C.
How to find binomials?Factor the area of the rectangle as:
12x² - 8x - 15 = (4x - 5)(3x + 3)
The binomials (4x - 5) and (3x + 3) represent the length and width of the rectangle, but to determine which is which. Since the length is usually greater than the width, we can see that (4x - 5) represents the length and (3x + 3) represents the width.
To find the length of the short side when x = 4, we can substitute 4 for x in the expression for the width:
3x + 3 = 3(4) + 3 = 12
Therefore, the length of the short side when x = 4 is 12.
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how do hox genes primarily function in multicellular organisms
Answer: Calix's cells have more DNA
Explanation: Mutation is the reason for the more DNA in the Calix's cells.
For each of the pedigrees below (same as in 5a) what is the most likely inheritance pattern (Autosomal Dominant, Autosomal Recessive, X-linked Dominant or X-Linked Recessive) and why? What genotype for the listed individuals? Please use the letter R to represent the alleles and X-Linked should be in the
XR or X r format
Work in a small group or alone to complete this exercise. Use your own body (in anatomical position) to identify the following bones and features of the skeleton. Name the specific bone(s) (and feature(s) if possible for each. 1. Your chin 2. The bump behind the bottom of your ear 3. The dip at the bottom midline of your neck between your two collarbones | 4. The tip of your elbow 5. The sides of your elbow 6. The protrusion or bump on the back of your wrist 7. The protrusion or bump on the back of your wrist
Mandible -chin bone. The bump behind the bottom of your ear- mastoid bone. The suprasternal notch, is The dip at the bottom midline of your neck between your two collarbones . The olecranon or “tip of the elbow” is part of the ulna. The sides of your elbow- lateral epicondyles. The protrusion or bump on the back of your wrist- carpel boss.
Describe mandible.
The largest bone in a person's cranium is called the mandible. It helps with chewing, forms the lower jawline, and holds the lower teeth in position. The mandible is subordinate to the maxilla and is made up of a body and ramus. The lower jawline is formed by a part of the body that is horizontally curved.
The upper border of the manubrium of sternum is where the jugular notch (also known as the suprasternal notch or presternal notch) is located. Just behind the ear is where the mastoid bone is situated. An inflammation of the bony air cells in the mastoid bone, which is found directly behind the ear, is known as mastoiditis.
The lateral epicondyle is the lump on the outside of the elbow. The prominence on the outside of the elbow is painful and tender due to the disease known as lateral epicondylitis. A carpal boss, also known as a carpometacarpal boss, is an enlargement of the carpal bones that make up the wrist. A hard lump forms on the wrist's back as a consequence of the overgrowth.
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imagine that you have two blades of grass. one is from a normal plant, and the other is from a mutant plant that cannot absorb water into its vacuoles. how will the structures of these two blades of grass compare? please choose the correct answer from the following choices, and then select the submit answer button. answer choices
The grass blade from the mutant plant will appear unpigmented compared to that from the normal plant. So, option (d) is correct.
What is mutant plant ?
The look of a plant's traits, most notably its foliage, flowers, fruit, or stems, can change as a result of mutations in plants, a phenomenon that happens naturally. For instance, a flower might display two colors that are precisely half and half. Frequently, the mutant plants recover their normal state the following season.
What is unpigmented ?
Pigments are a group of chemical substances used to give other materials their color. They have a strong hue. These chromogens are also known as biological pigments or biochromes, which primarily refers to the actual pigments.
Vacuole help in the storage and disposal of various substances. They can store food or other nutrients required by a cell.
Lytic vacuoles function as reservoirs for ions and metabolites like pigments, acids, and toxic substances.
As the grass blade are made up of cells and in mutant plant there is no vacuole so storage of pigment will be not there.
Therefore, The grass blade from the mutant plant will appear unpigmented compared to that from the normal plant. So, option (d) is correct.
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5-fluorouracil is a chemotherapeutic agent that is used for the treatment of certain types of cancers. which of the following is a mechanism by which 5-fluorouracil might work?
Answer: preventing the replication of DNA
Explanation: overreplication of cells, or extra cells, causes cancer. Stopping the replication of cells can prevent the cancer from worsening. I’ve also had this question on my homework and got the answer correct.
which of the following descriptions does not describe atrioventricular (av) valves? which of the following descriptions does not describe atrioventricular (av) valves? flap-like open based on pressure changes in the atria versus the ventricles formed from pocket-like cusps anchored inferiorly by specialized connective tissue
A. made of cusps that resemble pockets B. open depending on variations in atrioventricular pressure rather than ventricle pressure C
ventricle: what is it?
a cavity in an organ or body part, for example. one of the two areas of the heart responsible for delivering blood to the body the region of the heart where blood enters the arteries: a bodily portion or organ's cavity
How do the heart's ventricles function?
The heart's ventricles work to circulate blood throughout the body. The heart is full of blood and the atria and lower chambers relax during the diastole period of the cardiac cycle. The ventricles contract during the ventricular diastole phase, pushing blood to the major blood vessels (pulmonary and aorta).
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When two genes from two different people are sequenced and aligned, it is discovered that there are multiple sequence differences in the coding segment DNA level. When the proteins formed by the genes have their amino acids sequenced, there is a few differences observed between the two. What is the most likely explanation for this observation? O RNA processing failed to remove the different segments from the mRNA molecules of each person prior to translation The mutations are silent or frameshifted. O The mutations lie at locations where they don't affect protein sequence due to degeneracy of the genetic code O The mutations are repaired at the mRNA level after transcription has occurred, but before translation O Mutations at the DNA level are either at the first or second base in a codon.
The possible reason for the few differences in the amino acid sequence is the mutations lie at the location where they don't affect the protein sequence due to degeneracy of the genetic code which means different genetic codes are specified for the same amino acid. Thus, 3rd option is correct.
What is genetic code?The genetic code is a set of guidelines that specify how the DNA's four-letter code is converted into the 20-letter code for amino acids, which serve as the basis for proteins. Codons, a collection of three-letter nucleotide combinations that make up the genetic code, are each associated with a particular amino acid or stop signal.
In 1961, Francis Crick and his coworkers published the first description of the idea of codons. The genetic code started to be cracked by experiments conducted by Marshall Nirenberg and Heinrich Matthaei in the same year. It was established that the RNA sequence UUU had a specific code for the amino acid phenylalanine.
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Question 5 of 25
How are photosynthesis and cellular respiration related?
A. They are both performed by plants.
B. They both produce glucose molecules.
C. They are both performed by animals.
D. They both require energy from the sun.
SUBM
Answer:
im confident in D. They both require energy from the sun.
Explanation:
i dont have much to prove it but, yeah.
One forms glucose and the other breaks it down.
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Respiration is the chemical process by which organic compounds release energy.
dave has discovered a new lipid-soluble hormone. which of the following is true regarding this hormone?
Without more information about the specific hormone that Dave discovered, it is impossible to determine the statements is true.
What are hormones?Hormones are chemical messengers produced by specialized cells or glands in the body that are secreted into the bloodstream and transported to various organs and tissues. Hormones play a critical role in regulating a wide range of physiological processes, including growth and development, metabolism, reproduction, mood, and behavior.
Hormones can be classified into two main categories based on their chemical structure and solubility: water-soluble hormones and lipid-soluble hormones. Water-soluble hormones, such as insulin and adrenaline, are made up of proteins and peptides and are able to dissolve in the bloodstream. Lipid-soluble hormones, such as testosterone and estrogen, are made up of lipids and are able to pass through the cell membrane.
Hormones interact with specific receptors on target cells, triggering a cascade of signaling pathways that lead to various cellular responses. The level of hormone production and release is tightly regulated by a complex feedback system involving multiple organs and glands in the body, ensuring that physiological processes are kept in balance.
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Skeletal muscle reflexes can be either monosynaptic or polysynaptic. Which of the following statements is true regarding monosynaptic versus polysynaptic skeletal muscle reflexes?
Choose the best answer.
a. Monosynaptic reflexes are composed of only two neurons between the stimulus and target cell, while polysynaptic reflexes contain three or more neurons.
b. Upon a painful stimulus, a person would withdraw their leg and then lose their balance and possibly fall over
c. Upon a painful stimulus, a person would withdraw their leg and then lose their balance and possibly fall over
Answer:
A. Monosynaptic reflexes are composed of only two neurons between the stimulus and target cell, while polysynaptic reflexes contain three or more neurons.
In pigs a curly tail (T) is dominant to a straight tail (t). Also, pink body(B) is dominant to a grey body(b). Show a cross between a homozygous dominant curly tailed, homozygous dominant pink pig and a heterozygous curly tailed , heterozygous pink pig. What is the 1st and 2nd pigs genotype?
Answer:ANSWER OF GIVEN QUESTION
Explanation:
semen analysis indicates that the client's sperm have decreased motility. which of the following cellular components may be defective within the client's sperm?
Answer:
Explanation:
Decreased sperm motility may be caused by a defect in the flagellum, which is the structure responsible for propelling the sperm forward.
The flagellum is a long, whip-like structure that extends from the body of the sperm and propels it through the female reproductive tract. It is composed of microtubules and other proteins, which work together to create a wave-like motion that propels the sperm forward.
If there is a defect in the structure or function of the flagellum, it can result in decreased sperm motility and reduced fertility. Other factors that can affect sperm motility include hormonal imbalances, infections, exposure to toxins, and genetic abnormalities. A semen analysis can help to identify these factors and guide treatment options.
What did we not account for that occurs during meiosis with this activity? How do you thing that would have changes the results?
Answer: since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase. Meiosis I Before entering meiosis I, a cell must first go through interphase.
Explanation:
An advantage of [blank] is that a genetic disorder in a parent might not affect the offspring.
An advantage of Sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
What is offspring?
Offspring is a term used to refer to the immediate descendants of a person, animal, or plant. It can also refer to future generations of a family. In general, offspring refers to the children of a parent or parents, but can also refer to the progeny of any organism, such as a plant or animal.
During sexual reproduction, offspring receive genetic material from both parents. By combining the genetic information from both parents, the offspring will have a unique combination of genetic material that may not include any disorder present in either parent. This means that even if one parent has a genetic disorder, the offspring may not inherit the disorder from that parent. As a result, sexual reproduction allows for the possibility of genetic diversity and the avoidance of genetic disorders that may be present in one or both parents.
Therefore, Sexual reproduction is the answer.
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What is an example of natural interest?
crops planted in a field
all the available water in a stream
the total number of fish in a lake
oxygen produced from trees in a forest
Answer:
The answer is B - all the available water in a stream.
Natural interest is the level of available resources in an area. We know A is not natural as it was placed there by a person. The reason it is not C is because of the total number of fish in a lake is not necessarily indicative of the natural interest of the area.
For example, the amount of fish in any single lake could be impacted by human beings bringing in additional fish to the lake, making the natural interest not an accurate estimate.
As for D, the same logic applies. The amount of oxygen in an area is not the best indicator of the natural interest of an area.
What is muncipal waste
Answer:
Municipal solid waste (MSW) includes all items from homes and businesses that people no longer have any use for. These wastes are commonly called trash or garbage and include items such as food, paper, plastics, textiles, leather, wood, glass, metals, sanitary waste in septic tanks, and other wastes.
Explanation:
Explanation:
Municipal solid waste, commonly known as trash or garbage in the United States and rubbish in Britain, is a waste type consisting of everyday items that are discarded by the public. "Garbage" can also refer specifically to food waste, as in a garbage disposal; the two are sometimes collected separately.
In Guinea pigs; black fur color (B) is dominant to albino (b): and Rough coat is dominant to Smooth coat (1) group of heterozygous black; smooth males (Bbrr) are mated with heterozygous black; heterozygous rough females (BbRr) total of 150 offspring De produced. By considering observed affsprings: please answer the following questions step by step. (12 p) What is your null hypothesis?
Null hypothesis: There are no statistically significant differences between the observed and the expected outcomes. The differences in the outcomes are by chance.
What is a null hypothesis?In statistics, the Null Hypothesis is the prediction made about population parameters. It refers to the equality between variables. It states there is no difference between variables.
Usually, the null hypothesis is opposite to the alternative hypothesis, which proposes differences between variables.
The alternative hypothesis is what the researcher wants to prove or test, but the conclusions are done concerning the null hypothesis,
There is enough evidence to reject the null hypothesisThere is not enough evidence to reject the null hypothesisCross
Parentals) Bbrr x BbRr
F1) Total: 150 pigs
Observed
63 black and rough (42%) 51 black and smooth (34%) 12 albino and rough (8%) 24 albino and smooth (16%)Expected
Br Br br br
BR BBRr BBRr BbRr BbRr
Br BBrr BBrr Bbrr Bbrr
bR BbRr BbRr bbRr bbRr
br Bbrr Bbrr bbrr bbrr
6/16 black and rough (37.5%)6/16 black and smooth (37.5%)2/16 albino and rough (12.5%)2/16 albino and smooth (12.5%)
Expected Observed
Black and rough 56.25 63
Black and smooth 56.25 51
Albino and rough 18.75 12
Albino and smooth 18.75 24
We can see differences between the observed and the expected number of pigs with different phenotypes.
Null hypothesis:
There are no statistically significant differences between the observed and the expected outcomes.
Genes coding for each trait are expected to assort independently.
If there are differences between the observed and the expected values, these are by chance.
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fill in the blank. presynaptic neurons can release multiple neurotransmitters at different times through the process of___, in which vesicles containing different neurotransmitters have different levels of sensitivity to calcium. group of answer choices corelease reuptake cotransmission autoreceptors
Presynaptic neurons can release multiple neurotransmitters at different times through the process of reuptake, in which vesicles containing different neurotransmitters have different levels of sensitivity to calcium. Thus, the correct option is B.
What is Reuptake?Reuptake is the process of reabsorption of a neurotransmitter by a neurotransmitter transporter which is located along the plasma membrane of an axon terminal, the pre-synaptic neuron at a synapse or the glial cell which is present after it has performed its function of transmission of a neural impulse.
Reuptake is necessary for the normal synaptic physiology because it allows the recycling of neurotransmitters and also the regulation of the level of neurotransmitter present in the synapse, thereby controlling how long a signal resulting from the neurotransmitter release lasts. Because the neurotransmitters are too large and hydrophilic to diffuse through the membrane, through the specific transport proteins that are necessary for the reabsorption of neurotransmitters.
Therefore, the correct option is B.
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Food is propelled forward by rhythmic contractions called which move food down the esophagus and through the stomach The secretions called are produced in the glands located behind the tongue and contain the enzyme amylase to chemically digest carbohydrate During teeth mechanically cut and grind food into smaller pieces as the tongue mixed them with saliva When fat enters the duodenum, the gallbladder secretes an emulsifier called to break up the large fat globules. Without the flap of tissue at the back of the tongue called the trachea during swallowing Chyme passes through the that connects the ileum with the ascending colon The bolus passes through the into the stomach to mix with gastric digestive juices The bolus slides down this tube, called the which connects the pharynx to the stomach This large gland, located near the stomach, releases digestive enzymes after a meal and also secretes insulin and glucagon to control blood glucose levels. This accessory organ is called the
Food is propelled forward by rhythmic contractions called peristalsis, which move food down the esophagus and through the stomach.
What is esophagus?The secretions called saliva are produced in the glands located behind the tongue and contain the enzyme amylase to chemically digest carbohydrate. During mastication, teeth mechanically cut and grind food into smaller pieces as the tongue mixes them with saliva. When fat enters the duodenum, the gallbladder secretes an emulsifier called bile to break up the large fat globules. Without the flap of tissue at the back of the tongue called the epiglottis during swallowing, food could enter the trachea and cause choking. Chyme passes through the ileocecal valve that connects the ileum with the ascending colon. The bolus passes through the esophagus into the stomach to mix with gastric digestive juices. The bolus slides down this tube, called the esophagus, which connects the pharynx to the stomach.
Here,
This large gland, located near the stomach, releases digestive enzymes after a meal and also secretes insulin and glucagon to control blood glucose levels. This accessory organ is called the pancreas.
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Humans bonobos and chimpanzees all use gestures to communicate in human infants these gestures proceed language development.
Humans, bonobos, and chimpanzees all use gestures to communicate. In human infants, these gestures precede language development.
The word "proceed" in the original sentence is used incorrectly. The correct word to use in this context is "precede," which means to come before or go in front of. The sentence is discussing the order in which language development occurs, and the use of gestures is said to come before or precede language development. Using the word "proceed" suggests that gestures happen after language development, which is not accurate. Therefore, the word "proceed" should be replaced with "precede" to convey the intended meaning of the sentence.
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The full question was here:
Fix the one word that is used incorrectly.
Humans bonobos and chimpanzees all use gestures to communicate In human infants these gestures proceed language development.
select all of the following that are characteristics of atp. check all that apply an immediate source of energy for cellsan immediate source of energy for cells an enzyme used widely in all kinds of cellsan enzyme used widely in all kinds of cells a high-energy membrane-bounded proteina high-energy membrane-bounded protein carries a great deal of chemical energy in a chemical bondcarries a great deal of chemical energy in a chemical bond composed of a nitrogenous base, a sugar, and three phosphate groupscomposed of a nitrogenous base, a sugar, and three phosphate groups the bond between the sugar and nitrogenous base are what give atp its energythe bond between the sugar and nitrogenous base are what give atp its energy a nucleic acid
Characteristics of ATP are it is an immediate source of energy, a high-energy membrane-bound protein, and carries a great deal of chemical energy in a chemical bond. The correct option for this question are options 1,3 and 4
What is ATP?ATP (Adenosine triphosphate) is an energy-giving molecule that gives energy to our body by breaking the glucose molecule into its simplest form. ATP plays a very important role during cellular respiration.
During cellular respiration, one glucose molecule breaks into its simple form and releases 6 ATP which are used by our body to perform cellular activities.
Our body needs energy for performing metabolic activities, and for doing mechanical works all these energy requirements are fulfilled by ATP. Thus ATP works as a delivering agent between the storage molecule and the cell.
The correct option for this question are options 1,3 and 4
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Your answer is incomplete, the correct question would be like this
Select all of the following that are characteristics of ATP.
1. An immediate source of energy for cells
2. An enzyme used widely in all kinds of cells
3. A high-energy membrane-bounded protein
4. Carries a great deal of chemical energy in a chemical bond
5. Composed of a nitrogenous base, a sugar, and three phosphate groups
TRUE OR FALSE alfred russel wallace 'forced darwin's hand' when he sent him a letter detailing an idea identical to darwin's own, which had come to wallace while in a malarial fever.
Wallace first wrote to Darwin in 1858 from Indonesia. In the letter he summarises Darwin's personal views, first outlined in 1842. This induced Darwin to are looking for publicati
on of the manuscript he had been working on for some time.
What used to be Wallace's letter to Darwin about?July 1st, 1858
On June 18th, 1858, Charles Darwin obtained an essay written by way of Alfred Russell Wallace from Ternate in the Malay Archipelago. It outlined Wallace's theory of evolution by herbal determination in terms that had been strikingly comparable to Darwin's very own drafts of the theory.
What did Wallace ship to Darwin?Wallace knew Darwin was working on comparable research. In 1858, he despatched Darwin a letter outlining his thoughts about evolution. The two collaborated on a scientific paper, discussing their proof for herbal resolution and evolution.
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9. The probability that a boy whose mother is heterozygous for a sex-linked trait having the trait is:
10. The probability that the daughter of a mom with a dominant disease-causing allele on the X chromosome and a dad with the disorder will be affected with the disorder is:
11. An unaffected man and an unaffected woman have a son with Lesch-Nyhan syndrome, an X-linked recessive trait. What are the chances that a daughter of this couple will inherit Lesch-Nyhan syndrome?
12. A man has the X-linked dominant condition CGH that produces dense hair on the face and upper body. What is the chance that he will pass it on to his daughters?
Answer:
Explanation:
The probability that the daughter of a mom with a dominant disease-causing allele on the X chromosome and a dad with the disorder will be affected with the disorder is 100%. This is because the daughter will inherit one X chromosome from the mom, which carries the dominant allele that causes the disorder, and one X chromosome from the dad, which is affected by the disorder.
Since the parents are unaffected, we can infer that they are both heterozygous carriers of the Lesch-Nyhan syndrome allele. If they have a son with the syndrome, we know that the son inherited the recessive allele from both parents. The chance that a daughter of this couple will inherit Lesch-Nyhan syndrome is 25%. This is because the daughter will inherit one X chromosome from the father, which does not carry the recessive allele, and one X chromosome from the mother, which has a 50% chance of carrying the recessive allele.
Since the condition is X-linked dominant, the man will pass on the dominant allele to all of his daughters. Therefore, the chance that he will pass it on to his daughters is 100%.
