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grigory [225]
3 years ago
15

Why is crossing-over considered to be a driving force of natural selection?

Biology
1 answer:
Degger [83]3 years ago
5 0
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
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If the number of blue jays increases, the two likely effects on other populations are both the number of mice and the number of caterpillars will decrease.

<h3>What are two likely effects on other populations due to the increment in Blue jays population?</h3>
  • An organism that preys on other species in order to consume them as food is referred to as a predator.
  • Prey is a term used to describe an organism that a predator kills.
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Hence, both the number of mice and the number of caterpillars will likely drop as the number of blue jays rises, having two possible implications on other populations.

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brainly.com/question/12655080

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