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The genotypes of a husband and Wife are IAIand IA i. Among the blood types of their children, how manydifferent genotypes and phenotypes are possible?
  • a)
    3 genotypes ; 4 phenotypes
  • b)
    4 genotypes ; 3 phenotypes
  • c)
    4 genotypes ; 4 phenotypes
  • d)
    3 genotypes ; 3 phenotypes
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The genotypes of a husband and Wife are IAIBand IA i. Among the blood ...
Explanation:

The ABO blood group system is determined by three alleles: IA, IB, i. IA and IB are co-dominant, while i is recessive.

Possible gametes of the husband: IAIB, i
Possible gametes of the wife: IA i

Possible genotypes of their offspring:
- IAIA (blood type A)
- IAIB (blood type AB)
- ii (blood type O)
- IAi (blood type A)

Possible phenotypes of their offspring:
- Blood type A
- Blood type B
- Blood type AB
- Blood type O

Therefore, there are 4 possible genotypes and 3 possible phenotypes.

Hence, option B is the correct answer.
Free Test
Community Answer
The genotypes of a husband and Wife are IAIBand IA i. Among the blood ...
Genotypes are AA. Ai. AB. Bi.
phenotypes are A A. AB. B blood grp respectively
so 4:3(b)
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The genotypes of a husband and Wife are IAIBand IA i. Among the blood types of their children, how manydifferent genotypes and phenotypes are possible?a)3 genotypes ; 4 phenotypesb)4 genotypes ; 3 phenotypesc)4 genotypes ; 4 phenotypesd)3 genotypes ; 3 phenotypesCorrect answer is option 'B'. Can you explain this answer?
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