Explain the role of crossing over in ensuring genetic variation

Asked by admin @ 07/11/2021 in Biology viewed by 290 People

Which situation is a result of crossing-over during meiosis?

A
Genes are duplicated exactly, ensuring that offspring will be
identical to the parents.
B
Chromatids thicken and align themselves, helping to ensure
genetic continuity.
с
Genes are rearranged, increasing the variability of offspring.
D
Chromatids fail to sort independently, creating abnormal
chromosome numbers.

Answered by admin @ 07/11/2021

Answer:

Explanation: Genes are rearranged due to crossing over and offspring can vary in traits and appearance

Crossing over is a major mechanism for generating genetic variation

Asked by admin @ 26/11/2021 in Biology viewed by 267 persons

Sexual reproduction in eukaryotes increases genetic variation. In prokaryotes, transformation, transduction, and conjugation are mechanisms that increase genetic variation. A fundamental difference between the generations of genetic variation in the …

Explain the role of crossing over in ensuring genetic variation

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