OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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what could be a possibility of not having genetic variation of a species?
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faster evolution
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greater chances to avoid a massive outbreak of disease or environment change
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greater chance of becoming extinct because of outbreak of disease or environment change
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easier for favorable traits to be passed on
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Explanation:
Detailed explanation-1: -Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Detailed explanation-2: -Species with low genetic variability are generally at greater risk of extinction than the species with more genetic variability.
Detailed explanation-3: -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.
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