EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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lateral gene transfer
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mitosis
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1 round of cell division
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splitting of the egg during development
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Detailed explanation-1: -In the absence of sexual reproduction, the transfer of DNA between organisms independent of sexual reproduction via lateral gene transfer (LGT) enables bacteria to increase genetic diversity and therefore potentially increase evolutionary fitness.
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: -Horizontal gene transfer (HGT) spreads genetic diversity by moving genes across species boundaries. By rapidly introducing newly evolved genes into existing genomes, HGT circumvents the slow step of ab initio gene creation and accelerates genome innovation.