GENERAL HISTOLOGY

Detailed explanation-1: -Current knowledge indicates that females are born with their entire lifetime supply of gametes. At birth, the normal female ovary contains about 1-2 million/oocytes (eggs). Females are not capable of making new eggs, and in fact, there is a continuous decline in the total number of eggs each month.

Detailed explanation-2: -Because many eggs start to develop but die off before being ovulated, a woman goes through roughly 300, 000-400, 000 eggs in their reproductive years, but only ovulates 300-400 eggs. The average woman runs out of eggs and starts menopause around the egg of 52.

Detailed explanation-3: -Some women are born with ovaries that can not produce eggs. Women with this condition do not go through puberty and usually never have a period.

Detailed explanation-4: -How many eggs do women have in their 30s? There is no one right answer to this question, as certain factors – such as smoking or other personal factors – may mean a woman has fewer eggs than others. The average number of oocytes at the age of 30 would be around 72, 000 (12% of maximum pre-birth levels).

Detailed explanation-5: -No, the egg cells in human women do not contain identical DNA. While it is possible for the genetic material in two eggs to be the same, the statistical probability of this occurring is nearly impossible.