Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis. During meiosis, a diploid ...

These two haploid cells produce a diploid zygote. Hormonal control of reproduction Hormones control puberty, the menstrual cycle, and sperm production and play a crucial role in in the control of ...

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

During fertilisation the haploid nucleus of a sperm cell and the haploid nucleus of an egg cell fuse together to form a diploid zygote.

"When yeast cells kiss": two haploid yeast cells of different mating types approach each other for mating. Use of images is limited to editorial coverage of scientific topics relating to the ...