As a result of fertilization, the number of chromosomes in the zygote _______ in comparison to the number of chromosomes in each of the gametes.
A) doubles
B) is reduced by a factor of two
C) is reduced by a factor of three
D) doubles in plants but stays the same in animals
E) doubles in animals but stays the same in plants

Question

Quizplus · Accepted Answer

Fertilization is the process that leads to the formation of a zygote. During fertilization, the sperm and egg cells (gametes) fuse together, and their nuclei combine. This results in the doubling of the chromosome number in the zygote, as it now contains one set of chromosomes from each parent. Therefore, the correct answer is A, which states that the number of chromosomes in the zygote doubles in comparison to the number of chromosomes in each of the gametes.

As a Result of Fertilization, the Number of Chromosomes in the Zygote