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प्रश्न
What is oogenesis?
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उत्तर
Oogenesis is the process of forming a mature female gamete (ovum). It occurs in the ovaries of the female reproductive system. Oogenesis is a discontinuous process; it begins before birth, stops mid-process, and only resumes after menarche.
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संबंधित प्रश्न
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
Define spermiogenesis.
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
What is gamete formation?
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?
Sex organs produce gametes which are diploid.
The male sex hormone testosterone is secreted from ____________.
The glandular accessory organ which produces the largest proportion of semen is ____________.
The Androgen Binding Protein (ABP) is produced by ____________.
Answer the following type of question Assertion (A) and Reason (R).
(A) - Head of the sperm consists of acrosome and mitochondria.
(R) - Acrosome contains spiral rows of mitochondria.
Describe the structure of the human ovum with a neat labelled diagram.
The secondary oocyte enter into the fallopian tube through the ______.
Four primary spermatocytes give rise to ______.
Find out the CORRECT sequence of spermatogenesis.
How many sperms are formed from a secondary spermatocyte?
Sertoli cells are found in ______.
There is no cell division involved in ______.
Identify the wrong statement from the following.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
The nutritive cells found in seminiferous tubules are ______.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
Acrosome is a type of ______.
During oogenesis, each diploid cell produces ______.
After the release of the secondary oocyte, the Graafian follicle develops into ______.
In the process of fertilization, this is true:
Capacitation refers to changes in the ______.
Draw a neat and labelled diagram of spermatogenesis.
Draw a labelled diagram of a section through the ovary.
