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प्रश्न
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
विकल्प
Spermatogonia have 46 chromosomes and always undergo meiotic cell division
Primary spermatocytes divide by mitotic cell division
Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
Spermatozoa are transformed into spermatids
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उत्तर
Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
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संबंधित प्रश्न
Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process.
The fusion of the male and the female gametes is called ______.
Define spermiation.
Identify True/False statement. Correct the false statement to make it true.
Oogenesis takes place in the corpus luteum.
Explain the structure of secondary oocyte.
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
Identify the given image and label its parts marked as a, b, c and d
Select the correct sequence of oogenesis.
The cell which undergoes meiosis I during spermatogenesis is the ______.
Cells of corona radiata remain grouped together by ______.
During embryonic development, the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called ______.
Gray crescent is the area ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
The principal tail piece of human sperm shows the microtubular arrangement of ______.
In oogenesis haploid egg is fertilised by sperm at which stage?
Aquatic animals in which fertilisation occurs in water are said to be
Follicular atresia is:
How many primary oocytes produce one oogonia?
Match List - I with List - IІ.
| List - I | List - II |
| A. Head | I. Enzymes |
| B. Middle piece | II. Sperm motility |
| C. Acrosome | ΙII. Energy |
| D. Tail | IV. Genetic material |
Choose the correct answer from the options given below:
