1. A person having three barr bodies would have how many X chromosomes in each c

Question

1. A person having three barr bodies would have how many X chromosomes in each cell? a. 1 b. 2 c. d. 4 2. An individual with the genotype x"x for a X-linked recessive condition would, a. Be male b. Be female c. Have the condition d. Be a carrier of the condition e. B and D, but not A and C 3. An individual with the genotype X y for a X-linked recessive condition would, a. Be male b. Be female c. Have the condition d. Not have the condition e. A and C, but not B and D 4. A person with cystic fibrosis has a genotype of, b. Cc e. None of the above

Explanation / Answer

1)- option c is correct because barr bodies are inactive X chromosomes.

2)- option e is correct because recessive condition doesn't express itself and two X chromosomes are present in female.

3)- option e is correct because in male only one X chromosome present and express.

4)- option a is correct because in it functioning of CF gene is abnormal.

3)-

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