Reproductive Health

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Question

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Question 1 :

Barr body in human female is formed by

1. inactivation of paternal X-chromosome
2. inactivation of maternal X-chromosome
3. inactivation of bom X-chromosomes
4. inactivation of either the paternal or maternal X-chromosome
Answer
6499

Question 2 :

A man of A-blood group marries a women of AB blood group. Which type of progeny would indicate that man is heterozygous A?

1. AB
2. A
3. O
4. B
Answer
6500

Question 3 :

An allele is dominant if it is expressed in

1. both homozygous and heterozygous states
2. second generation
3. heterozygous combination
4. homozygous combination
Answer
6501

Question 4 :

Who is the father of genetics?

1. deVries
2. Mendel
3. Darwin
4. Morgan
Answer
6502

Question 5 :

Sex is determined in human beings

1. by ovum
2. at time of fertilization
3. 40 days after fertilization
4. seventh to eight week when genitals differentiate in foetus
Answer
6503