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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.
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संबंधित प्रश्न
State whether the following statement is true (T) or false (F):
The plumule of an embryo gives rise to the root system.
Mention the function of Seeds.
Name the following:
The part where the sperms are produced in the testes
The figure given alongside represents the female reproductive system of a mammal.
Name the parts labelled A - D
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.
Give Reasons
A large number of sperms are required for fertilizing one egg.
Differentiate
Isogametes and Heterogametes.
Give a labeled structure of ovum.
Complete the following sentences with appropriate word:
The sperms in a human male are produced in _____.
Complete the following sentences with appropriate word:
One egg is normally released from the ovary in the human females after
__________
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The process of fusion of the sperm nucleus and the egg nucleus is termed implantation.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Fertilization is the product of the egg nucleus and the sperm nucleus.
Describe the process of fertilization.
In which part of the human female reproductive system do the following events take place?
Fertilization
What are autosomes chromosomes?
Match the items in column I with those in column II and write down the matching pairs (some may not match).
| Column I | Column II | ||
| (a) | Acrosome | (i) | An embryo which looks like human baby. |
| (b) | Gestation | (ii) | Luteinizing hormone |
| (c) | Menopause | (iii) | Ovum producing cells. |
| (d) | Foetus | (iv) | Semen |
| (e) | Oogenesis | (v) | Spermatozoa |
| (f) | Ovulation | (vi) | Complete stoppage of menstrual cycle. |
| (vii) | Time taken by a fertilised egg till the delivery of baby. |
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
Write the specific location of the following:
Acrosome
