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प्रश्न
Draw a labelled diagram of sperm.
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उत्तर १
उत्तर २
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संबंधित प्रश्न
With the help of diagrammatic representation, explain the process of gametogenesis
Name the hormones involved in regulation of spermatogenesis.
Explain the structure of secondary oocyte.
In meiosis, the number of chromosomes becomes ___________.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
The male sex hormone testosterone is secreted from ____________.
Mention the differences between spermiogenesis and spermatogenesis.
At what stage of development are the gametes formed in newborn male and female?
Define gametogenesis.
Identify the enzyme released by the sperm which has lytic activity.
The immature male germ cells differentiates into ______ at the end of meiosis I.
How many autosomes does a human primary spermatocyte have?
Extrusion of second polar body from egg nucleus occurs ______.
Acrosome reaction in sperm is triggered by ______.
Sertoli cells are found in ______.
Cavity of graafian follicle is ______.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
Acrosome is a type of ______.
At what stage of life is oogenesis initiated in a human female?
1st polar body is formed at which stage of oogenesis?
What does the figure represent?
The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
What is the difference between a primary oocyte and a secondary oocyte?
In spermatogenesis, at the end of the first meiotic division ______ are formed.
What is spermatogenesis?
