Mon January 30, 2012 By:

1)What is a gene set? 2)How does gamete formation take place in human body?

Expert Reply
Tue January 31, 2012
In human body, gamete formation occurs through meiosis. Meiosis gives rise to the haploid gametes, the sperm and egg cells. In males, the process of gamete production is known as spermatogenesis, where each dividing cell in the testes produces four functional sperm cells, all approximately the same size. In contrast, in females, oogenesis produces only one surviving egg cell from each original parent cell. During cytokinesis, the cytoplasm and organelles are concentrated into only one of the four daughter cells—the one which will eventually become the female ovum or egg. The other three smaller cells, called polar bodies, die and are reabsorbed shortly after formation.
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