GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sexual reproduction, mutations
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asexual reproduction, mutations
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biological evolution, genetics
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biological evolution, genetics
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Detailed explanation-1: -Mutation can happen any time a gene is copied-including during sexual reproduction as reproductive cells are made. Mutation is how different versions of genes come about in the first place. If those critters reproduce, their gene differences get passed down.
Detailed explanation-2: -The three main sources of genetic variation arising from sexual reproduction are: Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents.
Detailed explanation-3: -Three primary sources of genetic variation are mutation, genetic recombination, and gene flow in the population.
Detailed explanation-4: -Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring.