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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.
पर्याय
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
Briefly describe the process of spermatogenesis.
Define spermiogenesis.
Define spermiation.
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
Give scientific reason.
There is a menopause when women are 45-50 years old.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Give a schematic representation of spermatogenesis and oogenesis in humans.
The part labelled as ______ contains the energy source that facilitates sperm motility.
Identify the diploid cell.
Formation of ____________ is an indication of the termination of oogenesis.
Identify the proper order of spermatogenesis and choose the correct option.
Which of the following is diploid?
Find out the CORRECT sequence of spermatogenesis.
It The cell division in secondary oocyte is suspended at ______.
During embryonic development, the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called ______.
Which of the following contains the actual genetic part of a sperm?
At what stage of life is oogenesis initiated in a human female?
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:
In spermatogenesis, at the end of the first meiotic division ______ are formed.
