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QUESTION 20 Why does meiosis result in more genetic variation than can be explained by mutation alone? Select all that apply. Oa. because of the events of meiosisI b because of the events of meiosis I because of crossing over d.not all the DNA gets replicated

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Answer #1

Answer:-

Option "a"- because of events of meiosis 1 and "c"-because of crossing over.

Explanation:-

*crossing over or genetic recombination occurs during prophesy 1 of meiosis 1.

1.The chromosomes created during meiosis are composed of 50% copies of the parent cell and 50% new cells.

2.These new cells are produced during the cross-over stages of the cell division process.

3.During this stage half of the genetic material from the parent cell is copied into the new cells, with the other half having distinct properties and characteristics.

4.progeny gets better adaptation and become more fittest with good number of variations genetically.

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