When two gametes fuse during fertilization to produce a zygote with distinct DNA combinations, this variety is amplified even more, hence a, b, d is the correct option.
What is genetic variation?Genetic variation is the difference in DNA between individuals or between populations. Multiple sources of genetic variation include mutations and genetic recombination. Mutation is the ultimate cause of genetic variation, but so are other mechanisms such as: B. Gene drift, contributing to this.
Genetic variation results in different forms or alleles of a gene. For example, looking at eye color, a blue-eyed person has one allele of the eye color gene, while a brown-eyed person has a different allele of the gene.
Therefore, meiosis brings about changes in organisms, which lead to changes during evolution. So a, b, and d are the correct choices.
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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 organelle responsible for photosynthesis is the chloroplast, while the organelle responsible for cellular respiration is the mitochondria.
What are the roles of mitochondria and chloroplasts?The "powerhouses" of the cell, mitochondria break down fuel molecules and harvest energy during cellular respiration. Both plants and algae include chloroplasts. They are in charge of absorbing solar energy to produce sugars during photosynthesis.
What purposes do chloroplasts serve?Through the processes of photosynthesis and oxygen release, chloroplasts provide energy that supports plant growth and crop yield. As a result, chloroplasts are in charge of producing active substances such amino acids, vitamins, lipids and secondary metabolites
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The most important large molecules found in all living things can be sorted into just four main classes: carbohydrates, lipids, proteins, and nucleic acids. On the molecular scale, members of three of these classes--carbohydrates, proteins, and nucleic acids--are huge and are therefore called
Since those large molecules, which are carbohydrates, proteins, lipids (fats) and nucleic acids, are "large" or "huge", then the molecules are called macromolecules. Macro- means "being large".
Macromolecules are any large molecules ranging from about 100 to 10,000 angstroms in size. They are composed of much larger numbers of atoms than micromolecules are.
Carbohydrates are macromolecules that are also called sugar molecules. They are the main source of energy for living beings, including humans.
Fats (also known as lipids) are used as major and dense source of food energy for many animals. Fats play important structural and metabolic functions, including thermal insulation and energy storage.
Proteins are macromolecules that perform a vast array of functions within organisms, including DNA replication, catalysing metabolic reactions, responding to stimuli, providing structure to organisms and cells, and transporting molecules from a location to another.
Nucleic acids are macromolecules that are essential to all known forms of life. There are two main classes of nucleic acids, which are DNA and RNA.
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In a human karyotype, chromosomes are arranged in 23 Paris. If we choose one of these pairs, suck as pair 14, which of the following do the two chromosomes of the pair have in common? Length, centromere position, staining pattern, and traits coded for by their genes. You just studied 42 terms!
chromosomes are arranged in 23 pairs, If we choose one of these pairs, such as pair 14, the two chromosomes of the pair will have the same chromosome length, centromere location, features, and staining pattern. in common
The human karyotype consists of 23 pairs of chromosomes. From the entire karyotype he picks out a pair of chromosomes that show some similarities or share some common features.
The two chromosomes are present in an autosomal pair (22 in humans) and a sex-linked chromosome that is distinct from other autosomes.
Any two of her chromosomes in a chromosome pair, such as chromosome 14, are similar in shape and size, staining patterns on both chromosomes, and important traits where they encode the same trait.
This chromosome pair has the same chromosome length, centromere location, features, and staining pattern.
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Even though segregation was documented before Mendel, it was not understood well, because scientists did not collect any FILL IN THE BLANK data; instead, ...
Although segregation had been established prior to Mendel, it was poorly understood because scientists had not gathered any data.
Mendel established the segregationist law in what way?Mendel's observation that pea plants with two different qualities produced offspring that all displayed the dominant feature, while the following generation expressed the dominant and recessive traits in a 3:1 ratio led to the development of the Law of Segregation.
Is the principle of segregation always valid?Even though the alleles have the same phenotypic impact, their parental sources differ. When the alleles are divided during meiosis, the law of segregation continues to apply.
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Between what temperatures are foods at risk for the growth of bacteria?.
The temperature danger zone is between 41°F and 135°F.
FILL IN THE BLANK. the food you eat is processed during cellular respiration to produce stored chemical energy in the form of ___, ___, and ___ as by-products.
The food you devour is processed for the duration of cellular respiration to produce saved chemical power in the shape of ATP molecules, CO2, and H20 as by-means of-products.
In our body, glucose is the form of electricity that is carried in our blood and taken up with the aid of every one of our trillions of cells. Cells do cellular respiration to extract power from the bonds of glucose and other meal molecules. Cells can shop the extracted electricity inside the shape of ATP (adenosine triphosphate).
Through the method of cellular respiration, the power in meals is converted into electricity that can be utilized by the frame's cells. during cell respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
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ATP molecules, carbon dioxide, and water are produced as by-products.
Thru the technique of cellular respiration, the strength in food is modified into power that can be utilized by the frame's cells. Cellular respiration is a sequence of chemical reactions that break down glucose to produce ATP, which may be used as energy to strengthen many reactions at some point in the frame. There are three major steps of cell respiratory: glycolysis, the citric acid cycle, and oxidative phosphorylation.
But essentially, the process is referred to as cellular respiration because the cell seems to “respire” in a way that it takes in molecular oxygen (as an electron acceptor) and releases carbon dioxide (as an give-up product).
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Why is it accurate to claim that the legume-bacteria mutualism described in the text is contingent?.
Rhizobia, a type of nitrogen-fixing soil bacteria, and legumes can coexist together.
What can you say about bacteria in one sentence?a huge collection of single-cell organisms. Some affect both humans and animals with infections and diseases. Some bacteria aid in the digestion of food, assist the body produce necessary vitamins, and eliminate disease-causing cells. Additionally, bacteria are employed to create nutritious foods like yogurt. But contagious microorganisms can give you a disease.
What is the genesis of bacteria?Bacteria are found in hot springs, polar ice and glaciers, soil, water, plants, wildlife, radioactivity, and deep inside the earth's crust. Bacteria can be found in the stratosphere, from 6 and 30 miles high in the atmosphere, as well as in the deepest parts of the ocean, 10,000 meters or 32,800 feet below the surface.
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In the gal gene system, which protein binds to the activation domain of the activator protein, ultimately blocking transcription in the absence of galactose?.
In the GAL gene system, Gal4 protein acts as an activator protein through its transcription-initiating effect.
What do you mean by transcription?A DNA fragment is copied into RNA during transcription. Messenger RNA is created when specific DNA sequences are translated into RNA molecules that can encode proteins (mRNA). Non-coding RNAs are RNA molecules that contain copies of other DNA sequences (ncRNAs). Only 1% to 3% of all RNA samples are mRNA. A minimum of 80% of mammalian genomic DNA can be actively transcribed (in one or more types of cells), with the bulk of this 80% being ncRNA. In contrast, less than 2% of the human genome can be transcribed into mRNA (Human genome (Coding vs. noncoding DNA)).
What is GAL gene system?The GAL genes offer a tightly controlled framework for the investigation of gene-specific chromatin organization. While GAL structural genes are inactive in the absence of galactose, they are extensively transcribed when it is present. Many characteristics of GAL structural gene control can be explained by the expression patterns of the regulatory genes.
Thus from above conclusion we can say that in the GAL gene system, Gal4 protein acts as an activator protein through its transcription-initiating effect.
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In mammals, mature red blood cells do not have mitochondria. How would red blood cells produce atp?.
Red blood cells use anaerobic respiration to make ATP.
Red blood cells, or RBCs, do not have mitochondria. Using glucose molecules for glycolysis during anaerobic respiration, red blood cells generate energy in the form of adenosine triphosphate, or ATP.
ATP is subsequently hydrolyzed to produce free energy for red blood cell activity.
The most common type of blood cell and the vertebrate's main means of delivering oxygen (O2) to the body tissues through blood flow through the circulatory system are red blood cells, also known as red cells,[1] red blood corpuscles (in humans or other animals not having a nucleus in red blood cells), haematids, erythroid cells, or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel [2] RBCs squeezing through the body's capillaries transfer oxygen into tissues after absorbing it in the lungs or, in the case of fish, the gills.
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FILL IN THE BLANK. Escherichia coli and Streptococcus faecalis are two types of ______ that make up part of the municipal water pollution produced by humans.
Fecal coliform bacteria like Escherichia coli and Streptococcus faecalis contribute to the human-caused contamination of municipal water supplies.
What categories of water contaminants exist?Organic, inorganic, pathogens, suspended solids, nutritional and agricultural pollutants, thermal, radioactive, and other pollutants are all types of water pollution. Industrial effluents and sewage are the principal sources of organic and inorganic pollutants that are dumped into water bodies.
Which of the following represents a water contamination example?Examples include wastewater (sometimes called effluent) discharged by a manufacturer, an oil refinery, or a wastewater treatment facility, as well as contamination from leaky septic systems, chemical and oil spills, and unlawful dumping.
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which hormones are involved in building and maintaining healthy bone tissue? select all that apply. one, some, or all responses may be correct.
Various hormones are :
Parathyroid hormone or PTH Calcitriol.What do you mean by Hormones ?
Hormones can be defined as the chemical substances that act like messenger molecules in the body.These are the body's chemical messengers, sending signals into the bloodstream and tissues. They affect metabolism, appetite, growth and development, mood, stress, and body temperatures.The major glands that make up the endocrine system are the: hypothalamus, pituitary and thyroid.Hence, the given Hormone strengthen bones density.
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urine flows from the kidney to the urinary bladder bya) ciliary action in the kidneyb) suction from the urinary bladderc) muscle contraction of the uretersd) contraction of the bladder muscles
Urine flows from the kidney to the urinary bladder by - contraction of the bladder muscles .
What is Contraction of the bladder muscles ?
When the bladder muscle suddenly and without warning contracts, it causes an urgent need to release urine, which is known as a bladder spasm or "detrusor contraction." Urine may flow from the bladder as a result of the spasm. When this occurs, the problem is known as overactive bladder or urge incontinence.
Your bladder muscles may contract uncontrollably during bladder spasms, causing cramping, searing pain. You'll probably also have a strong urge to urinate. Urinary incontinence, which can result from abrupt bladder spasms, occurs when pee leaks from the bladder.
An overactive bladder can trigger bladder spasms by making you feel the need to urinate. A UTI or interstitial cystitis, a painful bladder ailment, are other potential causes. There are drugs that can lessen spasms.
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Compare and contrast the potential effects of a mutation that occurs in a cell that is undergoing mitosis with a mutation that occurs in a cell that is undergoing meiosis. What is the range of the effects of each? Check all that apply.
Mutations that occur in cells undergoing meiosis can be passed on to the individual's children.
Mutations that occur in cells undergoing both mitosis and meiosis are associated with cancer.
Mitosis is a type of cell division that results in somatic cells, whereas meiosis is a type of cell division that results in gametes. Most mutations in somatic cells are either not dangerous or do not alter the organism.
Does meiosis or mitosis cause cancer?Cancer is fundamentally a mitotic illness in which the cancer cell ignores or overrides the usual mitotic "checkpoints" that control the process. When a single cell undergoes a transformation into a cancer cell, cancer is said to have started.
Can both mitosis and meiosis have mutations?Mitosis and meiosis can both result in mutations before, during, and after. A mutation can be transmitted if it happens in the cells that will undergo meiosis to produce gametes or while meiosis is occurring.
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which two of the following statements are correct regarding the use of bacteriophage to treat infections?
Bacteriophages have been shown to be efficient against bacteria in biofilms. It is true that bacteriophages are specific to one kind of microbe and are used to treat infections.
What are bacteriophage ? Bacteriophages, or phages as they are commonly known, are viruses that only infect and replicate in bacterial cells. They are regarded as the most prevalent biological agent on earth and are widely distributed throughout the environment. Their size, appearance, and genetic organization are incredibly different.What is the use of bacteriophage to treat infections?Bacteriophages (BPs) are viruses that have no harmful effects on human or animal cells but have the ability to infect and kill bacteria. Because of this, it is assumed that they can be used to treat bacterial infections, either alone or in conjunction with antibiotics.For more information on bacteriophage kindly visit to
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the parietal cells of the stomach produce hydrochloric acid to protect the mucosal covering from gastric erosion. the nurse understands that helicobacter pylori (h. pylori) produces an enzyme that enables its survival in this acidic environment. which enzyme does h. pylori produce?
The pylori attacks the lining that protects your stomach. The bacteria makes an enzyme called urease.
What do you mean by Helicobacter pylori?
Helicobacter pylori is a gram-negative, microaerophilic, spiral bacterium usually found in the stomach. It has a helical shape is thought to have evolved in order to penetrate the mucoid lining of the stomach.You can get H. pylori from food, water, or utensils.Most people are cured after finishing two weeks of medicine.Natural cure methods include Green tea , Honey , Olive oil ,Licorice root and Broccoli sprouts.
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Put the olfactory pathway structures and events into the correct order.
1. Olfactory neuron axons enter a pair of olfactory bulbs.
2. Olfactory tracts project to the primary olfactory cortex in the temporal lobe of the cerebrum.
3. Olfactory neuron axons project through foramina in the cribriform plate.
Olfactory neuron axons project through foramina in the cribriform plate is the correct order of olfactory pathway.
What is Olfactory neuron?The pathway of olfactory conduction begins with the olfactory receptors—small, slender nerve cells embedded in large numbers (about 100 million in the rabbit) in the epithelium of the mucous membrane lining the upper part of the nasal cavity.
Each olfactory receptor cell emits two processes (projections). One of these is a short peripheral dendrite, which reaches to the surface of the epithelium, where it ends in a knob carrying a number of fine radially placed filaments, the olfactory hairs.
The other process is a long and extremely thin axon, the olfactory nerve fibre, which reaches the cranial cavity by passing through one of the openings in the bony roof of the nasal cavity and enters the olfactory bulb of the forebrain.
Therefore, Olfactory neuron axons project through foramina in the cribriform plate is the correct order of olfactory pathway.
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discuss the evidence for the branching of fungi and animals within one clade, the opisthokonta, which is distinct from algae and protists.
Posterior flagella are a characteristic of opisthokonta organisms at some stage in their life cycles. Because they possessed movable spores at some stage in their evolutionary history, fungi are included in this category.
The term "opisthokonts" refers to a large class of eukaryotes that includes members of both the animal and fungi kingdoms. Opsthios, which means "rear, posterior," and kontós, which means "pole, i.e. flagellum," are derived from Ancient Greek. Opisthokonts, formerly known as the "Fungi or Metazoa group," are widely acknowledged as a clade.
Many fungal lineages emerge during the fungi's evolution without the flagella. According to DNA evidence, fungus belong to the group of animals known as opisthokonts, which includes all other animals.
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the humoral immune response differs from the cell mediated immune response in that ony in the humoral immune response is there
The humoral immune response differs from the cell-mediated immune response in that only in the humoral immune response there are B lymphocytes.
What is the humoral immune response and the cellular immune response?
The humoral immune response is the response of the body to antigens that are circulating in the blood or extracellular fluids. This response is mediated by antibodies that are produced by B lymphocytes. The cell-mediated immune response is the response of the body to antigens that are presented by cells of the body. This response is mediated by T lymphocytes.
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to answer this question, you may reference the metabolic map. categorize each enzyme based on its specific function in glycolysis, gluconeogenesis, or both pathways. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. glycolysis gluconeogenesis both
Categories of each enzyme based on its specific function in glycolysis (Hexokinase, Phosphofructokinase, Pyruvate kinase) gluconeogenesis (Fructose-1,6- bisphosphatase, Glucose 6 phosphatase) or both pathways (Phosphoglucose isomerase).
Category of the enzymes on the basis of glycolysis
Hexokinase
Phosphofructokinase
Pyruvate kinase
Category of the enzymes on the basis of gluconeogenesis
Fructose-1,6-bisphosphatase
Glucose-6-phosphatase
Category of the enzymes on the basis of both (glycolysis and gluconeogenesis)
Phosphoglucose isomerase
The reverse pathway of glycolysis resembles gluconeogenesis. Only three of glycolysis's reactions (hexokinase, phosphofructokinase, and pyruvate kinase) are irreversible and are catalyzed by specific enzymes. Enzyme fructose-1,6-bisphophatase and glucose-6-phosphatase catalyze fructose-1,6-bisphophate and glucose-6-phosphate to fructose-6-phosphate and glucose respectively.
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which of the following forms of carbohydrates do muscle cells prefer to use for fuel? a) glucose; b) fructose;c) atp; d) glycogen
d) Glycogen is the form of carbohydrate that muscle cells prefer to use for fuel.
The form of glucose that is stored and is composed of numerous linked glucose molecules is called glycogen. Your body's major source of energy is glucose (sugar).
It originates from carbohydrates, a macronutrient found in some of the foods and beverages you consume. Your body typically stores glucose as glycogen in your muscles and liver for later use when it doesn't immediately need it for energy.
In animal cells, glucose polymers are stored as glycogen molecules. The human liver and muscle cells contain the most glycogen.
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In a meadow where earthworms live in the soil, the ph gradually decreases from the optimum range into the zone of stress. What is the most likely effect on the earthworm population?.
The most likely effect on the earthworm population is high-tolerance earthworms proliferate more widely in the population.
What pH do earthworms prefer?Earthworms can only thrive in a specific pH range. If the substrate is excessively acidic or too alkaline, worms cannot live in it. The pH range that is suitable is 6.0 to 8.0. The process of natural selection led to this. Natural selection is a process wherein organisms that are more adapted to their environment will probably survive and procreate more frequently than those that are less adapted.All earthworms require a moist environment since they breathe through their skin and require moisture to do so (earthworms lack lungs). Earthworms expel bodily fluids (such as sweat) that catch the dissolved oxygen.To learn more about Earthworms refer to:
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Develop a model to decribe the cycling of matter and flow of energy among living and nonliving part of an ecoytem. You hould ue multiple part of thr carbon cycle to demontrate thi cycle
The Cycling of Matter and Flow of Energy Model:
The Carbon Cycle:
1. Photosynthesis: Plants absorb carbon dioxide (CO2) from the atmosphere and use sunlight to convert it into energy and oxygen. This process is known as photosynthesis.
2. Respiration: Plants and animals respire, releasing CO2 back into the atmosphere.
3. Decomposition: When plants and animals die, bacteria and fungi break down their remains, releasing CO2 back into the atmosphere.
4. Fossil Fuels: Fossil fuels such as coal, oil, and natural gas are formed from the remains of plants and animals from millions of years ago. When these fuels are burned, they release CO2 back into the atmosphere.
5. Ocean: CO2 is also absorbed by the ocean, where it reacts with water to form carbonic acid. This process helps to regulate the amount of CO2 in the atmosphere.
6. Land: Plants absorb CO2 from the atmosphere, and their remains are incorporated into the soil, where it can be stored for long periods of time.
Flow of Energy:
Sun: Energy from the sun is absorbed by plants during photosynthesis.
Plants use sunlight energy to convert CO2 into organic carbon compounds during photosynthesis.
Consumers obtain energy from the organic carbon compounds they consume as food.
Decomposers obtain energy from breaking down organic materials from living organisms.
What is the Ecosystem?
The ecosystem is the collective network of living and non-living components that interact with each other in a given environment. It includes both biotic and abiotic factors, such as organisms, climate, soil, water, and other physical features. All of these components work together to create a system that sustains life.
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As you continued to experiment with higher concentrations of the toxin, you found cases when the cell could not repolarize at all, or if it began to repolarize, it would immediately depolarize again. Given this description and the description in the previous question, how does this toxin acts on voltage-gated sodium ion channels? The toxin probably prevents the potassium channels from opening. This would cause the cell to depolarize properly but not repolarize since the potassium channels are needed for that to occur. The toxin probably prevents the sodium channels from opening. The cell would not be able to depolarize properly if the sodium channels are blocked. The toxin probably prevents the sodium channels from closing once they are opened. This would cause the cell to depolarize properly at first, but not repolarize since the sodium channels need to close for that to occur. The toxin probably prevents the sodium channels from opening. The cell would not be able to repolarize properly if the sodium channels are blocked. none of these
This toxin may act on voltage-gated sodium ion channels and fail to reset the inactivating gates of sodium ion channels. This is required for repolarization to occur. It's also possible that the sodium channels are simply stuck open.
What are sodium ion channels?Sodium channels are integral membrane proteins that form ion channels and transport sodium ions (Na+) across cell membranes. There are two main classes of mammalian sodium channels: Voltage-gated sodium channel (VGSC) family and epithelial sodium channel (ESC). Voltage-gated sodium channels are present in various cell types throughout the body, whereas epithelial sodium channels are mainly localized to the skin and kidney.
Sodium channels play a key role in physiology. They rapidly transmit depolarizing impulses through cells and cellular networks, thereby enabling the coordination of higher-order processes ranging from locomotion to perception. These channels are also of particular importance in the history of physiology.
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With the exception of identical twins, siblings who have the same two biological parents are likely to look similar, but not identical, to each other because they have a similar but not identical combination of genes
At several locations along their genomes, one twin's DNA was different from the other twin's.
Identical twins share what proportion of their genes?In twin research, heritability is calculated by comparing the genetic similarity of identical twins, who share all of their genes, to fraternal twins, who only share 50% of their genes. The media has paid a lot of attention to twin research, particularly studies of twins raised separately.
What are the genetic similarities between identical twins?While non-identical twins and non-twin siblings both share half of their DNA, identical twins share all of their genes. Therefore, we can presume that environmental factors, rather than genetic variations, are the cause of any differences in at
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defined vs complex media can be selective all components and their concentrations are not precisely known all components and their concentrations are known supports the growth of a wider range of bacterial species
Match the strains with the correct descriptions: defined vs complex media
All components and their concentrations are not precisely known: complex mediaSupports the growth of a wider range of bacterial species: complex mediaWhat is defined and complex media?Culture mediа mаy be clаssified into severаl cаtegories depending on their composition or use. А chemicаlly-defined (synthetic) medium is one in which the exаct chemicаl composition is known. А complex (undefined) medium is one in which the exаct chemicаl constitution of the medium is not known. Defined mediа аre usuаlly composed of pure biochemicаls off the shelf; complex mediа usuаlly contаin complex mаteriаls of biologicаl origin such аs blood or milk or yeаst extrаct or beef extrаct, the exаct chemicаl composition of which is obviously undetermined.
So, the key difference between chemicаlly defined аnd complex mediа is thаt the chemicаl defined mediа contаin аn exаctly known chemicаl composition while complex mediа contаin аn unknown chemicаl composition.
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What is A strand of RNA bases?.
A strand of RNA can be thought of as a strand with one nucleotide in each link.
Ribonucleic acid (RNA for short) is a nucleic acid that is present in all living cells and is structurally similar to DNA. Each nucleotide is made up of a base (adenine, cytosine, guanine, and uracil, usually abbreviated as A, C, G, and U), a ribose sugar, and a phosphate. However, unlike DNA, RNA is mostly single-stranded. RNA molecules have a backbone composed of alternating phosphate groups and sugar ribose, rather than the deoxyribose found in DNA.
RNA contacts almost everything in the cell in one way or another. RNA performs a wide range of functions, from translating genetic information into the molecular machinery and structures of cells to regulating gene activity during development, cell differentiation, and environmental changes.
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An allogenic bone marrow transplantation remains the preferred and most successful method for treating which anemia?
a. Polycythemia vera
b. Aplastic anemia
c. Sideroblastic anemia
d. Anemia of chronic disease
An allogenic bone marrow transplantation remains the preferred and most successful method for treating aplastic anemia. Thus, the correct option is B.
What is Bone marrow transplantation?
Bone marrow transplantation is the transplantation of multipotent hematopoietic stem cells, usually derived from the bone marrow, peripheral blood, or umbilical cord blood. This is done in order to replicate inside the body of a patient and to produce additional normal blood cells. It may be autologous, allogeneic or syngeneic.
Aplastic anemia is a condition which occurs when the body stops producing enough new blood cells. The condition leaves the person fatigued and more prone to infections and uncontrolled bleeding. This condition has no cure however regular bone marrow transplant can help in making the condition better.
Therefore, the correct option is B.
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Question 6 of 25
Which correlation coefficient indicates a strong positive correlation?
A. r = -0.1
B. r= +0.9
C. r=-0.09
D. r = +0.5
The correlation coefficient (r) indicates a strong positive correlation with r = 0.9. The stronger the bond, the closer the relationship. Option B is true. As it is nearly 1 so it is the correct.
What is the Hamilton Rule?Hamilton established the rule governing the costs and benefits of altruistic behavior in organisms. Here in rB>C, the r is relatedness between the beneficiary and the cost to the donor. The stronger their bond, the more likely it is that one will make a sacrifice for the other. In the parent-offspring case, the relatedness is 0.5 because half of the genetic content comes from each parent to the offspring. The greater the genetic distance between two people, the lower the r value and the lower the likelihood of altruism.
Hence, option B is correct as here r is 0.9, which is the highest among all four options.
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What happens to DNA during Sexaul reproduction?.
Each gamete is genetically distinct because the DNA of the parent cell is shuffled before the cell divides. Gametes have half as many chromosomes as the other cells in the organism.
DNA is transmitted from one cell generation to the next by cell division, and ultimately from the parent organisms to their progeny. Prokaryotes and eukaryotes both divide their cells, but they do it in very different ways. Eukaryotic cells divide specifically through the processes of mitosis and meiosis. All eukaryotes undergo the process of mitosis, in which a parent cell divides into two daughter cells, each of which has the same number of chromosomes as the parent cell. Contrarily, meiosis only takes place in eukaryotic creatures that reproduce sexually. The cells required for sexual reproduction divide during meiosis to create new cells called gametes.
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What are the rungs of a DNA spiral made up of ?.
Answer:nucleotide base pairs
Explanation:
