A Diploid Germ Cell Reduces Its Chromosome Number by Half

Question

A diploid germ cell reduces its chromosome number by half to generate four haploid nuclei in
A) replication.
B) mitosis.
C) fertilization.
D) meiosis.
E) parthenogenesis.

Accepted Answer

Meiosis is the process by which a diploid germ cell divides into four haploid nuclei. This reduction in chromosome number is necessary for sexual reproduction, as it ensures that the resulting zygote has the correct number of chromosomes. Mitosis and replication both result in cells with the same number of chromosomes as the parent cell. Fertilization involves the fusion of two haploid cells to form a diploid zygote. Parthenogenesis is a type of asexual reproduction and does not involve the formation of haploid nuclei.