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Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-
- a)12/256
- b)81/256
- c)108/256
- d)54/256
Correct answer is option 'A'. Can you explain this answer?
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Explanation:
Understanding the Genetics of Albinism:
- Albinism in humans is controlled by a recessive gene, denoted as 'a'.
- In order for a person to have albinism, they must inherit two copies of the recessive gene (aa).
Genotypes of Parents:
- Both parents are known to be carriers for albinism, denoted as 'Aa'.
- This means that each parent has one dominant allele (A) and one recessive allele (a).
Possible Genotypes of Offspring:
- When both parents are carriers, the possible genotypes of their offspring are: AA, Aa, Aa, and aa.
Calculating the Chances of 1 Normal and 3 Albino Offspring:
- The chances of having a normal offspring (AA) is 1/4, as there is only one possible way for this genotype to occur.
- The chances of having an albino offspring (aa) is also 1/4, as there is only one possible way for this genotype to occur.
- Since there are 3 albino offspring out of 4 total offspring, the chances can be calculated as (1/4) * (1/4) * (1/4) * (1/4) = 1/256.
- However, since there are 3 possible ways for the 3 albino offspring to be arranged in a family of 4, the total chances become 3/256.
Therefore, the chances of having 1 normal and 3 albino offspring in a family of four, when both parents are carriers for albinism, is 12/256 or 3/64.
Understanding the Genetics of Albinism:
- Albinism in humans is controlled by a recessive gene, denoted as 'a'.
- In order for a person to have albinism, they must inherit two copies of the recessive gene (aa).
Genotypes of Parents:
- Both parents are known to be carriers for albinism, denoted as 'Aa'.
- This means that each parent has one dominant allele (A) and one recessive allele (a).
Possible Genotypes of Offspring:
- When both parents are carriers, the possible genotypes of their offspring are: AA, Aa, Aa, and aa.
Calculating the Chances of 1 Normal and 3 Albino Offspring:
- The chances of having a normal offspring (AA) is 1/4, as there is only one possible way for this genotype to occur.
- The chances of having an albino offspring (aa) is also 1/4, as there is only one possible way for this genotype to occur.
- Since there are 3 albino offspring out of 4 total offspring, the chances can be calculated as (1/4) * (1/4) * (1/4) * (1/4) = 1/256.
- However, since there are 3 possible ways for the 3 albino offspring to be arranged in a family of 4, the total chances become 3/256.
Therefore, the chances of having 1 normal and 3 albino offspring in a family of four, when both parents are carriers for albinism, is 12/256 or 3/64.
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Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer?
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Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer?.
Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Albinism in human is controlled by a recessive gene 'a' If both parents were known to carrier (Aa) for albinism. What is the chances of 1 normal and 3 albino in family of four :-a)12/256b)81/256c)108/256d)54/256Correct answer is option 'A'. Can you explain this answer?.
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