GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which can cause an organism to develop genetic variation that could be used to help it survive?
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mutations
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cloning
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cancer
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None of the above
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Explanation:
Detailed explanation-1: -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-2: -Mutation (which can produce whole new alleles in a population), random mating, random fertilisation, and linkage among homologous chromosomes during meiosis can contribute to genetic variation.
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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