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

Question

I. A person having three barr bodies would have how many X chromosomes in each cell? b. 2 d. 4 e. 2. An individual with the genotype X"x for a X-linked recessive condition would, a. Be male b. Be female c. Have the conditiorn 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 A person with cystic fibrosis has a genotype of, 4. b. Cc ?. ?? None of the above e. A female carrier of a sex linked recessive condition mates with a male not having the condition. The percentage of sons having the condition would be, 5. a. 25% b. 50% c. 75% d. 100% e, 0%

Explanation / Answer

Answere :

Question 1 : The correct option is (d) i.e. 4. Number of barr bodies is less than one number of X chromosomes of an individual like XXXX has 3 barr bodies.

Question 2 : The correct option is (d) i.e. Be a carrier of the condition because it is x-linked recessive condition.

Question 3 : The correct option is (c) i.e. Have a condition because it is x-linked recessive condition.

Question 4 : The correct option is (a) i.e. cc because cystic fibrosis is autosomal recessive disease.

Question 5 : The correct option is (a) i.e. 50% because it is x-linked recessive condition and female is carrier of the condition and male is normal, so 50% of son have the condition.

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