Q11 of 51 Page 1

A. Mention the problems that are taken care of by Reproduction and Child Health Care programme.

B. What is amniocentesis and why there is a statutory ban on it?

A. Reproduction and child health care programme addresses problems such as uncontrolled population growth, problems of sex abuse, sex-related crimes and sexually transmitted diseases (STDs).

B. Amniocentesis is a process to the diagnosis of chromosomal abnormalities and foetal infections by analyzing a small amount of amniotic fluid. But this process is misused for detecting the gender of the foetus. Therefore, there is a statutory ban on amniocentesis to avoid female foeticides.


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10

Why are sacred groves highly protected?

 11

A. Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain?

B. Still, it is observed that it does not form a continuous layer around the pollen grain. Give reason.


C. How are ‘pollen banks’ useful?

 12

What is a test cross? How can it decipher the heterozygosity of a plant?

 13

A. What do ‘Y’ and ‘B’ stand for in ‘YAC’ and ‘BAC’ used in Human Genome Project (HGP). Mention their role in the project.

B. Write the percentage of the total human genome that codes for proteins and the percentage of discovered genes whose functions are known as observed during HGP.


C. Expand ‘SNPs’ identified by scientists in HGP.