Question

FILL OUT THE ATTACHED TEMPLATE ACCORDINGLY

Humans have a diploid number (2n) of 46. Which of the following statements best predicts the consequence if meiosis did not occur during gametogenesis?


A

The gametes would get larger from one generation to the next.


B

The chromosome number would double with each generation.


C

The chromosome number would be halved with each generation.


D

The chromosome number would triple with each generation.

Answer 1

Answer: A) The gametes would get larger from one generation to the next. This statement is not necessarily true, as meiosis is responsible for reducing the chromosome number from diploid (2n) to haploid (n) in gametes, but not necessarily affecting the size of the gametes.

B) The chromosome number would double with each generation. This statement is not correct because meiosis is responsible for reducing the chromosome number, not doubling it. If meiosis did not occur, the chromosome number would remain at 2n in the gametes, which would result in an increase in chromosome number with each generation.

C) The chromosome number would be halved with each generation. This statement is correct because meiosis is responsible for reducing the chromosome number from diploid (2n) to haploid (n) in gametes, and this reduction is essential in maintaining the correct chromosome number in offspring. If meiosis did not occur, the chromosome number would not be halved, leading to an abnormal increase in chromosome number with each generation.

D) The chromosome number would triple with each generation. This statement is not correct because meiosis is responsible for reducing the chromosome number, not increasing it. If meiosis did not occur, the chromosome number would remain at 2n in the gametes, leading to an increase in chromosome number with each generation, but not necessarily a tripling.