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Anastasy [175]
3 years ago
9

A woman with type O blood is expecting a child. Her husband is type A. Both the woman's father and her husband's father had type

B blood. What is the probability that the child will have type O blood?A.100%b.75%C.50%D.25%E.0%
Biology
1 answer:
kkurt [141]3 years ago
4 0

C. 50%

Explanation:

  • The woman has blood group O so her genotype will be i^{O} i^{O}.
  • The husband has blood group A so his genotype could either be I^{A} I^{A} or I^{A} I^{O}.
  • Since the husband's father was having blood group B so it is obvious that the husband is heterozygous with genotype I^{A}i^{O}.
  • A cross between heterozygous dominant and homozygous recessive is a test cross and will yeild 50% offspring with recessive genotype.
  • So the probability of the child having blood group O is 50%.
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