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प्रश्न
Define spermiogenesis.
Define the term spermiogenesis.
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उत्तर १
Spermiogenesis is the process of transforming spermatids into mature, flagellated spermatozoa (sperms).
उत्तर २
The process of transformation of a circular spermatid to a spermatozoon is called spermiogenesis.
संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
Male and female gametes are ______.
The process of release of the ovum from a mature follicle is called ______.
Describe the process of spermatogenesis with the help of diagram.
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
If newborns are produced at the age of menopause, they may be with some abnormalities. Why?
In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Answer the following type of question Assertion (A) and Reason (R).
(A) - In human males, testes are extra-abdominal and lie in scrotal sacs.
(R) - Scrotum acts as a thermoregulator and keeps the temperature lower by 2°C for normal sperm production.
Expand the acronym.
hCG
Select the correct sequence of oogenesis.
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
The immature male germ cells differentiates into ______ at the end of meiosis I.
How many autosomes does a human primary spermatocyte have?
After ovulation, Graafian follicle regresses into ______.
Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
Besides activating the egg another role of a sperm is to carry ______ to egg.
Which of the following groups of cells in the male gonad, represent haploid cells?
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
Human milk differs from cow's milk because human milk contains:
In human females, meiosis II is not completed until:
Which of the following cells during gametogenesis is normally diploid?
Germ cells present in the seminiferous tubules undergo ______
How many primary oocytes produce one oogonia?
Answer the following:
How many primary spermatocytes and oocytes are required for the formation of 100 spermatozoa and ova?
What is spermatogenesis?
At the onset of puberty, gonadotropin releasing hormone is secreted by ______.
During oogenesis the meiotic division is arrested at ______ before fertilization.
