GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which does NOT cause genetic variation?
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crossing over in meiosis
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mutations
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acquired traits
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None of the above
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Explanation:
Detailed explanation-1: -Answer: Mitosis. A single cell splits during the mitosis stage to give rise to similar cells known as daughter cells.
Detailed explanation-2: -Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).
Detailed explanation-3: -The genetic diversity has three different sources: mutation, recombination and immigration of genes. Mutation is the driving force of genetic variation and evolution.
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