Class 12 Exam > Class 12 Questions > Albinism in human is controlled by a recessiv...
Start Learning for Free
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?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Albinism in human is controlled by a recessive gene 'a' If bot...
Free Test
FREE
| Start Free Test |
Community Answer
Albinism in human is controlled by a recessive gene 'a' If bot...
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.
|
Explore Courses for Class 12 exam
|
|
Similar Class 12 Doubts
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?
Question Description
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?.
Solutions 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? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of 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? defined & explained in the simplest way possible. Besides giving the explanation of
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?, a detailed solution 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? has been provided alongside types of 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? theory, EduRev gives you an
ample number of questions to practice 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? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup