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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
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 process of release of the ovum from a mature follicle is called ______.
Define spermiation.
Draw a labelled diagram of sperm.
Name the functions - Acrosome of sperm.
Which precautions will you follow to maintain the reproductive health?
Explain the structure of secondary oocyte.
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.
Define gametogenesis.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Identify the longest period of menstrual cycle.
______ undergoes 2nd meiotic division during spermatogenesis.
Select the pair of cells which does not divide further by mitosis.
Middle piece of mammalian sperm possesses ______.
Sertoli cells are found in ______.
The immature male germ cell undergo division to produce sperms by the process of spermatogenesis.
Choose the correct one with reference to the above.
Connective tissue around seminiferous tubules possess endocrine cells called ______.
Corona radia is made up of ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules 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?
Observe the given figure and answer the questions that follow.
- Label A and B.
- Identify the process.
- What happens during this process and what is formed?
3-celled male gamete develops in:
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
Meiotic division of the secondary oocyte completed ______.
Select a correct pair of cells with identical set of chromosomes.
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:
