GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It reduces the chance that species will possess characteristics well-suited for a changing environment.
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It increases the chance that species will possess characteristics well-suited for a changing environment.
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It allows multicellular organisms to change their traits during their lifetimes.
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It allows unicellular organisms to change their DNA after they die.
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Detailed explanation-1: -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-2: -Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population.
Detailed explanation-3: -It allows a population to adapt in response to changing environments. Explanation: The answer is “it allows a population to adapt in response to changing environments.” A genetically diverse population of individuals is more likely to survive than a population of individuals with similar genetic makeup.
Detailed explanation-4: -Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.
Detailed explanation-5: -Maintaining high genetic diversity allows species to adapt to future environmental changes and avoid inbreeding. Inbreeding, which happens when there are small, isolated populations, can reduce a species’ ability to survive and reproduce.