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प्रश्न
What is the need for contraception?
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उत्तर
Contraception is one of the best birth control measures to check population growth.
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संबंधित प्रश्न
What are the three types of methods used for birth control (or regulating child birth)? Give one example of each type.
Answer the following question.
What is meant by contraception?
What is done in the contraception method known as vasectomy?
Which method of contraception prevents fertilised egg from being implanted in the uterus?
In which one of the following birth control methods, a small portion of oviducts of a woman is removed by surgical operation and the cut ends are ligated?
(a) copper-T
(b) tubectomy
(c) vasectomy
(d) diaphragm
In the surgical method of birth control available for males, the structures A in the reproductive system are cut and ligated (tied up) at both ends. This prevents the reproductive cells B from coming out from the organs C where they are made in the male body. Since B cannot come out from the male body, they cannot fuse with cell D in the body of a female and hence pregnancy is prevented.
(a) What are structures A?
(b) What are cells B?
(c) Name the organs C.
(d) What is cell D?
(e) What is the name of this surgical procedure for birth control available to males?
Surgical methods of contraception prevent gamete formation.
Would a Planaria cut vertically into two halves regenerate into two individuals? Complete Figure D and E by indicating the regenerated regions.
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| A | B | C | D | E |
What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?
Reproductive health refers only to healthy reproductive functions. Comment.
