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प्रश्न
Give the significance of fertilization.
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उत्तर
Significance of fertilization:
- Fertilization maintains the diploid number of chromosomes in the newly formed zygote.
- It combines characters from two parents bringing about variation in the offspring.
- It determines the sex of the offspring.
- Fertilization introduces centrioles in the cell which are missing in the ovum.
APPEARS IN
संबंधित प्रश्न
Define the Zygote.
When pregnancy does not occur, the life of corpus luteum is about ______.
State whether the following statement is true or false:
Fertilization occurs in the vagina.
One egg is released from each of the two ovaries every month.
Rewrite the correct statement by changing the last one word if these statement is false.
Pregnancy in women can be prevented by the method of vasectomy.
Name the following:
Virgin birth
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
Mention two functions of the parts labelled '2' other than its endocrine functions.
Name two essential structures which take part in fertilization.
Give Reasons
Gametes have a haploid (n) number of chromosomes.
Draw a labeled diagram of sperm.
Give Technical Term:
In how many weeks fetus development is completed?
Multiple Choice Question:
Fertilization means:
How can plants and animals save themselves from extinction?
Give scientific reason.
The new individual produced by sexual reproduction always has the recombined genes of both the parents.
Sperms undergo the following changes in the epididymis EXCEPT ______
Which of the following is the first cell of human life?
Which hormones are called neurohypophyseal hormones?
Match the pair:
| 'A' | 'B' | ||
| (1) | Male | (a) | 44 + XX |
| (b) | 44 + XY | ||
| (c) | 44 + YY |
Fertilization takes place in ______.
