Animal Physiology: Topic 11.4 Sexual Reproduction

Question 1

Define Gametogenesis

Answer 1

Gametogenesis is the process by which diploid precursor cells undergo meiotic division to become haploid gametes (sex cells)

In males, this process is called spermatogenesis and produce spermatozoa (sperm)
In females, this process is called oogenesis and produce ova (eggs)

Question 2

What all processes does Gametogenesis involve?

Answer 2

The process of gametogenesis occurs in the gonads and involves the following steps:

Multiple mitotic divisions and cell growth of precursor germ cells
Two meiotic divisions (meiosis I and II) to produce haploid daughter cells
Differentiation of the haploid daughter cells to produce functional gametes