Home
Class 12
BIOLOGY
What is oogenesis? Give a brief account ...

What is oogenesis? Give a brief account of oogenesis.

Text Solution

Verified by Experts

Oogenesis is the process of the formation of a mature ovum from the oogonia in females. It takes place in the ovaries. During oogenesis, a diploid oogonium or egg mother cell increases in size and gets transformed into a diploid primary oocyte. This diploid primary oocyte undergoes first meiotic division i.e., meiosis I or reductional division to form two unequal haploid cells. The smaller cell is known as the first polar body, while the larger cell is known as the secondary oocyte. This secondary oocyte undergoes second meiotic division i.e., meiosis II or equational division and gives rise to a second polar body and an ovum. Hence, in the process of oogenesis, a diploid oogonium produces a single haploid ovum while two or three polar bodies are produced.
Promotional Banner

Similar Questions

Explore conceptually related problems

Give a brief account of coenzymes.

Give a brief account of opiates.

Give a brief account of green chemistry.

Give a brief account of protein synthesis.

Give a brief account of photoperiodism.

Give a brief account of cartilage.

Give a brief account of reflex action.

Give a brief account of starch grains.

Give a brief account of Williamson's synthesis.

Give a brief account of productivity .