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Get Answers to all your Questions
The genotypes of a Husband and Wife are IAIB and IAi.
Among the blood types of their children, how many different genotypes and phenotypes are possible?
- Option 1)
3 genotypes ; 3 phenotypes
- Option 2)
3 genotypes ; 4 phenotypes
- Option 3)
4 genotypes ; 3 phenotypes
- Option 4)
4 genotypes ; 4 phenotypes
Answers (1)
Explanation of law of independent assortment -
Gametes have gene R and r, and they also have alleles Y and y, the segregation of 50% of R and 50% of r is independent from segregation of 50% Y and 50% of y
- wherein
Thus, there are 4 genotypes of gametes, RY, Ry , rY and ry each with frequency 25% of the total gametes produced.
Option 1)
3 genotypes ; 3 phenotypes
This is incorrect option
Option 2)
3 genotypes ; 4 phenotypes
This is incorrect option
Option 3)
4 genotypes ; 3 phenotypes
This is correct option
Option 4)
4 genotypes ; 4 phenotypes
This is incorrect option
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