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प्रश्न
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
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उत्तर
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Spermatogenesis
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Oogenesis
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It is the process by which sperms are formed from the sperm mother cell in males
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It is the process by which ovum is formed from the oogonia in females
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After the second meiotic divisions in a single spermatogonium, 4 spermatids are obtained, which undergo maturation to form 4 sperm cells, or spermatozoa
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After the second meiotic divisions in the single oogonium, only one ovum and three polar bodies are obtained.
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Spermatogenesis occurs in males from puberty almost until death.
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In females, oogenesis starts before birth and occurs until menopause.
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APPEARS IN
संबंधित प्रश्न
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
Explain two main process in sexual reproduction.
Which of the following occurs during maturation phase of spermatogenesis?
The immature male germ cells differentiates into ______ at the end of meiosis I.
Conversion of spermatid into sperm is called as _______.
Spermiation is the process of the release of sperm from ______.
Fetal sex can be determined by examining cells from amniotic fluid looking for:
Which of the following cells during gametogenesis is normally diploid?
The process of gametogenesis is initiated by ______ and ______ hormones respectively.
At the onset of puberty, gonadotropin releasing hormone is secreted by ______.
