AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False The cells produced at the end of meiosis are genetically identical to the parent cell
A
True
B
False
Explanation: 

Detailed explanation-1: -The resulting cells from meiosis are not genetically identical because of the recombination of genes that occurred during prophase 1. Sex cells in humans are produced by meiosis. In males, all four child cells are sperms while in females, one child cell is an egg and the other 3 are polar bodies.

Detailed explanation-2: -The nuclei resulting from meiosis are not genetically identical and they contain one chromosome set only. This is half the number of chromosome sets in the original cell, which is diploid.

Detailed explanation-3: -Meiosis also differs from mitosis in that it involves a process known as recombination, during which chromosomes exchange segments with one another. As a result, the gametes produced during meiosis are genetically unique.

Detailed explanation-4: -Meiosis involves the crossing over of chromosomes in prophase 1. This process results in genetic variation and the 4 daughter cells formed at the end of meiosis are genetically dissimilar. Thus the correct answer is option B.

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