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प्रश्न
What is the difference between a primary oocyte and a secondary oocyte?
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उत्तर
| Primary oocyte | Secondary oocyte |
| Primary oocyte is a diploid cell formed in foetal ovary when the gamete mother cell, oogonia is arrested at prophase-I of meiosis. | Secondary oocyte is the haploid cell formed from primary oocyte that completes its first meiotic division, during puberty and produces the female gamete ova. |
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संबंधित प्रश्न
Name the hormones involved in regulation of spermatogenesis.
Draw a labelled diagram of sperm.
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Describe the process of oogenesis in human female.
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Describe the structure of the human ovum with a neat labelled diagram.
Identify the longest period of menstrual cycle.
In human beings, the largest cell formed during Oogenesis is ______
At the time of organogenesis, genes regulate the process at different levels and at different time due to ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:
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In human females, meiosis II is not completed until:
Which of the following cells during gametogenesis is normally diploid?
Name the germinal layers from which the following organs develop: Tongue, heart, sweat glands, vagina, mammary glands, kidney.
What is spermatogenesis?
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
Select a correct pair of cells with identical set of chromosomes.
Complete the analogy with respect to the structure of sperm.
Nebenkern : ‘X’ : : Acrosome is formed from : ‘Y’
