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प्रश्न
Name the functions - Acrosome of sperm.
What is the function of acrosome of sperm.
Name the function of the following:
Acrosome
उत्तर
It is a cap-like structure present in the anterior part of the head of the sperm. It contains hyaluronidase enzyme, which hydrolyses the outer membrane of the egg, thereby helping the sperm to penetrate the egg at the time of fertilization.
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संबंधित प्रश्न
The fusion of the male and the female gametes is called __________.
Identify True/False statement. Correct false statement to make it true.
Oogenesis takes place in corpus luteum.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
The male sex hormone testosterone is secreted from ____________.
Give a schematic representation of spermatogenesis and oogenesis in humans.
Identify the given image and label its parts marked as a, b, c and d
Expand the acronym.
LH
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
During spermatogenesis, spermatogonium grows in size to become ______.
Which of the following are known as the nourishing cells present in the seminiferous tubules?
Which of the following correctly describes the secondary oocyte?
Identify the enzyme released by the sperm which has lytic activity.
______ undergoes 2nd meiotic division during spermatogenesis.
Find out the CORRECT sequence of spermatogenesis.
Select the pair of cells which does not divide further by mitosis.
How many autosomes does a human primary spermatocyte have?
How many sperms are formed from a secondary spermatocyte?
It The cell division in secondary oocyte is suspended at ______.
The head of the epididymis at the head of the testis is called ______.
What does figure represent?
Fetal sex can be determined by examining cells from amniotic fluid looking for:
If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:
Follicular atresia is:
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?
Which type of cell division forms spermatids from the secondary spermatocytes?
Given below are two statements.
- Statement I: The spermatids are non-motile and non-functional which get transformed into functional spermatozoa by the process of spermiogenesis.
- Statement II: During the process of this change, the spermatids remain held to each other and to Leydig's cells by cytoplasmic bridges.
In light of the above statements, select the correct answer from the option given below.
Meiotic division of the secondary oocyte completed ______.
Distinguish between human sperm and ovum.
