I have heard that a male individual starts producing sperm only after sexual maturity. At this juncture Regulatory RNA plays an important role in the manufacturing process. On the other hand, it seems, a female baby is born with a finite number of eggs. Do they remain intact till the maturity? Or is there any kind of Regalatory RNA's influence on them as is the case with men?
2006-09-07 21:09:39 · 5 answers · asked by prasadrvr2001 1 in Science & Mathematics ➔ Biology
Eggs mature one at a time when the zona pellucida surrounds it and it is released at ovulation. They are not mature at birth. The ovary matures when the other reproductive organs mature - her eggs are not fertile at birth. She has thousands of eggs at birth but only a fraction are used.
2006-09-07 23:09:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
When a female is still an embryo she will have the most amount of eggs she will ever have in her life. The number peaks at around 20 weeks in which she will have ~4 million eggs. At birth the number have decreased to about 2 million. However all the eggs are stuck at prophase I.
At puberty hormonal signals will cause a few eggs each month to enter meiosis once again. And usually one egg per month reaches maturity ( finishes meiosis I) and the rest regress and dies. If the egg is fertilized then it will finish meiosis II and then nuclear fusion with the sperm will take place.
The the best of my knowledge this process is controlled hormonally. However even today there is little in depth understanding of female reproductive process, so it might be possible that regulatory RNA is involved.
Link for more on human reproductive system: http://biology.clc.uc.edu/courses/bio105/reproduc.htm
2006-09-08 12:08:24 · answer #2 · answered by tsubame_z 2 · 0⤊ 0⤋
Everything i've ever heard about it says that women females are born their eggs are completely mature and she is only born with the amount she will ever have. But then once she hits puberty is when they start to be released.
2006-09-07 21:14:43 · answer #3 · answered by Jessica 6 · 0⤊ 0⤋
In the females, eggs undergo changes only after the female undergoes maturity.
2006-09-07 22:24:50 · answer #4 · answered by mspentinum 3 · 0⤊ 0⤋
those eggs are starting position cells of female reproduction
2006-09-08 00:10:36 · answer #5 · answered by Harry Potter 1 · 0⤊ 0⤋