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प्रश्न
What is spermatogenesis?
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उत्तर
Spermatogenesis is the process by which male spermatogonia develop into adult male gametes called spermatozoa. It begins at puberty and usually lasts until death, with only a tiny decline in the amount of sperm produced as age increases.
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 ______.
Identify True/False statement. Correct the false statement to make it true.
Oogenesis takes place in the corpus luteum.
Name the functions - Acrosome of sperm.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
Multiple choice question.
The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?
Explain two main process in sexual reproduction.
Sex organs produce gametes which are diploid.
Mammalian egg is ____________.
The process which the sperm undergoes before penetrating the ovum is ____________.
Draw a labeled sketch of a spermatozoan.
Define gametogenesis.
During spermatogenesis, spermatogonium grows in size to become ______.
The secondary oocyte enter into the fallopian tube through the ______.
Which of the following occurs during maturation phase of spermatogenesis?
Select the correct sequence of oogenesis.
Which of the following is diploid?
Select the pair of cells which does not divide further by mitosis.
In human beings, the largest cell formed during Oogenesis is ______
After ovulation, Graafian follicle regresses into ______.
By which process sperms released from the seminiferous tubules?
Corona radia is made up of ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
Which of the following groups of cells in the male gonad, represent haploid cells?
Which of the following contains the actual genetic part of a sperm?
During oogenesis, each diploid cell produces ______.
Head of epididymis is called as ______.
The prostate gland and seminal vehicle perform the function of ______.
What does the figure represent?
Sperms can be stored for several years in liquid nitrogen with a temperature of ______.
Human milk differs from cow's milk because human milk contains:
The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.
Explain Oogenesis with diagram.
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
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:
Which gamete is produced through oogenesis?
Which of the following phases are shared by both spermatogenesis and oogenesis?
