(A) In mitosis, diploid cells replicate chromosomes ... which results in the formation of nonidentical haploid gametes. Note that the lengths of the cell-cycle stages are not drawn to scale.

The nucleus of a germline stem cell undergoes two divisions, firstly separating homologous chromosomes and secondly separating chromatids. Haploid gametes contain 23 single chromosomes.

Meiosis is a type of cell division that reduces the number of chromosomes in a parent cell by half to produce four reproductive cells called gametes. In humans, diploid cells contain 46 ...