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The answer is yes. Female infants are born with primary oocytes that are stalled in prophase I until puberty. At the onset of puberty, the ovaries begin oogenesis. During oogenesis, three polar bodies and one functional gamete are produced. Oogenesis is achieved through meiosis. However, the ovulated secondary oocyte arrests in metaphase II and does not complete meiosis II until it is fertilized.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoMeiosis only occurs in females if the oocyte is fertilized. This is because fertilization is necessary to notify the cells within the egg to begin the reproductive process.
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What are unusable egg cells called?
Unfertilized egg is called an Oocyte. In a fertilized egg is called a Zygote.
When does the secondary oocyte complete its second meiotic division to become a mature ovum?
At fertilization the secondary oocyte completes its second meiotic division
What is another name for an immature egg cell?
gametes, sex cells, haploid cells. the process is meiosis.
What is the final product of meiosis?
Four haploid cells (23 chromosomes, N in humans) from the two haploid cells (23 chromosomes, N * each of the chromosomes consisting of two sister chromatids are produced as a result of meiosis in males and females.
What is the size of a polar body?
a polar body is A small cell (which eventually disintegrates) that is the by-product of meiosis in female animals. One functional ovum and potentially three polar bodies result from meiosis of each primary oocyte. By:hyden 252-1079 im bored
Is Oocyte haploid?
Unfertilized egg is haploid; but fertilized egg is diploid. That is why you sometimes see chickens even in commercial eggs.
When does an oocyte complete meiosis II?
Meiosis II is completed after entry of sperm.
Which of the following can be fertilized to produce a zygote?
Secondary oocyte
What is the period of ovum?
an ovum mature oocyte after meiosis division
What is period of ovum?
an ovum mature oocyte after meiosis division
Is the primary oocyte diploid?
92 In women, gametogenesis begins in fetal life, but is arrested in prophase of meiosis I for years until just before ovulation. This arrested oocyte is called the "primary oocyte". The human genome consists of 23 chromosomes, and normal somatic cells in humans have two of each chromosome (2N) in the resting state. Since the DNA in the primary oocyte has already replicated and but hasn't undergone division yet, the cell contains double the number of chromosomes of the original cell. Therefore the primary oocyte has 92 chromosomes (4N). Keep in mind though, that just before ovulation, the cell will complete meisois I and be released as 2N (the other 2N is split off as the 1st polar body). This released cell (secondary oocyte) which is now 2N is arrested in metaphase of meiosis II until fertilized, where it will release a second polar body (which now only has 1N). The fertilized egg therefore has two copies of chromosomes, 23 from mother (from the original 92 you started out with), and 23 from the sperm.
What is a haploid female sex cell produced by meiosis called?
Oocyte
Difference between primary and secondary oocyte?
Any oogonia that has arrested itself in meiosis I prophase-dipotene on the onset of OMI (oocye maturation inhibition) hormone in the 3rd month of pregnancy and there after is a primary oocyte. On the urge of Leutinizing hormone which induces the pre-ovulatory phase, the primary oocyte completes meiosis I and arrests itself in meiosis II metaphase, which would only be completed if fertilization occurs, otherwise it will degenrate in 24 hours. On the completion of meiosis I, a SECONDARY oocyte and forst polar body is going to be formed.
What transports secondary oocyte toward uterus?
The fallopian tubes also knows as the uterine tubes transport the secondary oocyte or the fertilized egg to the uterus.
Where is the oocyte found?
cryptosporidium spp, has oocyte which is passed in feces.
Which type of cell is produced by meiosis in a male organism?
Secondary spermatocyte
How many egg cells come form a female germ cell?
One primary oocyte divides by meiosis and produces one polar body and one secondary oocyte. The polar body goes on to produce two more polar bodies, and the secondary oocyte divides into one polar body and one ovum. Therefore, one cell is produced from one primary oocyte.
