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प्रश्न
What is done in the contraception method known as vasectomy?
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उत्तर
The surgical method of birth control for men is called vasectomy, in which a small portion of the vas deferens is cut and their ends are sealed to prevent sperms from coming out.
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संबंधित प्रश्न
Write the full form of the following as it occur in biology :
HIV
Which method of contraception prevents fertilised egg from being implanted in the uterus?
In the surgical method of birth control available for human females, the structures P in the reproductive system are cut and ligated (tied up) properly at both ends. This prevents the reproductive cell Q released by an organ R from entering the structures P so that Q is not available to fuse with another reproductive cell S coming from the male reproductive system. In this way, pregnancy is prevented.
(a) What are structures P?
(b) What is cell Q?
(c) Name the organ R.
(d) What is the reproductive cell S?
(e) What is the name of this surgical method of birth control available to females?
A woman uses pills A as a method of birth control (or preventing pregnancy). The pills A stop the ovaries from releasing ovum into oviducts. Another woman uses pills B as a method of birth control. The pills B kill the sperms and prevent pregnancy.
(a) What do the pills A contain?
(b) What is the common name of pills A?
(c) What do the pills B contain?
(d) What is the common name of pills B?
(e) What is the general name of these methods of birth control?
Name the kind of diseases/disorders that are likely to occur in humans if
(i) mutation in the gene that codes for an enzyme phenyl alanine hydrolase occurs,
(ii) there is an extra copy of chromosome 21,
(iii) the karyotype is XXY.
Prepare a poster for the school program depicting the objectives of:
"Reproductive and Child Health Care Programme".
Name the kind of diseases/disorders and any two symptoms that are likely to occur in humans if Mutation in the gene that codes for an enzyme phenylalanine hydroxylase occurs.
The family planning programmes in India were initiated in ______.
The technique which makes use of amniotic fluid for the detection of prenatal disorder is called as ______.
First or free milk is called ______.
A dark stained body present in the somatic cells of human female but absent from those of male is ______.
The period of pregnancy is called ______
Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?
What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?
Observe the chart and graph given in the figure carefully and answer the following questions.
| Age in Years |
% of full height | |
| Boys | Girls | |
| 8 | 72% | 77% |
| 9 | 75% | 81% |
| 10 | 78% | 84% |
| 11 | 81% | 88% |
| 12 | 84% | 91% |
| 13 | 88% | 95% |
| 14 | 92% | 98% |
| 15 | 95% | 99% |
| 16 | 98% | 99.5% |
| 17 | 99% | 100% |
| 18 | 100% | 100% |
- Which of the line represents the height of boys?
- Which line represents the height of girls?
- What is the difference between the pattern of increase in the height of boys and girls?
- Is this pattern true for each individual?
Select the statement(s) that relate to reproductive health:
Where was "Saheli" developed?
Amniocentesis is a technique used to ______.
What are the statutory minimum ages for marriage strictly enforced for females and males, respectively?
Which of the following is NOT an indicator of improved reproductive health in a society?
