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प्रश्न
State whether True or False:
The chromosome number in germ cells producing the gametes are diploid.
पर्याय
True
False
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उत्तर
This statement is True.
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संबंधित प्रश्न
Suppose a normal woman has never borne a child; How many mature eggs would she have produced in her lifetime? Your calculation should be based on two clues-
(a) Eggs are produced at the rate of 1 egg every 28 days (one menstrual cycle)
(b) A woman’s total reproductive period is 13 – 45 years.
Given below is a portion of the diagram to show the diagrammatic highly magnified view of a single human sperm. Complete the diagram to show its normal structure.
Give appropriate term of the following:
The attachment of developing zygote (blastocyst) on the uterine wall.
Name the following:
Fusion of sperm and ovum.
The following diagram represents the vertical sectional view of the human female reproductive system.
How does the uterus prepare for the reception of zygote?
The following diagram represents the vertical sectional view of the human female reproductive system.
What happens to the uterus, if fertilization fails to take place?
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
Name (any one) hormone produced by the part labelled '2'.
Name the female sex hormones and structures which secrete them.
Give Reasons
A large number of sperms are required for fertilizing one egg.
Give Reasons
The oviduct funnel is lined with cilia.
Differentiate
Isogametes and Heterogametes.
Explain the Term Vas deferens.
Give Technical Term:
What term is used for the production and maturation of sperms in the testes?
Complete the following sentences with appropriate word:
The process of releasing an egg from the ovary is called _________.
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.
Answer the following question.
What is capacitation? Give its importance.
Explain the mechanism of fertilization in humans.
Which parts are converted into Seed and fruit respectively after fertilization?
Sperms undergo the following changes in the epididymis EXCEPT ______
What are the potential drawbacks in adoption of the IVF method?
- High fatality risk to mother.
- Expensive instruments and reagents.
- Husband/wife necessary for being donors.
- Less adoption of orphans.
- Not available in India.
- Possibility that the early embryo does not survive.
Choose the correct answer from the options given below:
