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प्रश्न
What differences are there in number, structure, and activity of the male and female gametes in a man?
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उत्तर
| Male Gametes | Female Gametes |
| Number: Very large. | Normally one at a time. |
| Structure: A sperm is about 50-55 microns long with head, acrosome neck, and lashing tail. | It is spherical and non-motile. |
| Activity: With the help of a lashing tail, it moves actively towards the oviducts. | Passively carried from ovary to oviduct. |
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संबंधित प्रश्न
List two functions performed by the testis in human beings.
State the function of Seminal vesicle.
Choose the correct answer:
Removal of testes is called ____________
Complete the following sentences with appropriate word:
The surgical sterilization of males is known as _________.
In humans, there are ____________ pairs of chromosomes.
In humans, sperm production occurs in the organ ______.
Which of the following produces sperms in spermatogenesis?
Semen is a constituent of seminal plasma with ______.
The primary sex organ of a human male is ______.
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Follicle cells : Ova :: ______ : Sperms.
