GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Genetic variation has no effect on the ability to adapt.
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As genetic variation increases, the ability to adapt increases
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As genetic variation decreases, the ability to adapt increases.
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As genetic variation increases, the ability to adapt decreases.
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Detailed explanation-1: -Which best describes the relationship between genetic variation and an organism’s ability to adapt to its environment? The environment causes genetic variation in a population of organisms, which allows them to adapt to their environment.
Detailed explanation-2: -Genetic variation in a group of organisms enables some organisms to survive better than others in the environment in which they live. Organisms of even a small population can differ strikingly in terms of how well suited they are for life in a certain environment.
Detailed explanation-3: -Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination). Genetic variations that alter gene activity or protein function can introduce different traits in an organism.
Detailed explanation-4: -The answer is meiosis because that is where “crossover” and recombination of DNA take place in sexual reproduction, increasing genetic variation of offspring. A genetically diverse population of individuals is more likely to survive than a population of individuals with similar genetic makeup.
Detailed explanation-5: -Evolutionary change can occur through mutation and natural selection. Mutations are genetic changes in an organism. Mutations can occur spontaneously or be induced by environmental factors. Environmental factors that induce mutations are called mutagens.