In humans, brown eyes, B, are dominant to blue eyes, b. A brown eyed man marries a blue eyed woman. they have eight children, all are brown eyed. What are the possible genotypes of each person in the family?
Thank youu in advance ! :D
Thank youu in advance ! :D
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The possible genotypes of parents are:-
Parents- BB X bb [BB-male and bb-female]
Gametes- B, b
F1 offspring- All Bb (Brown eyed)
But it can be in this way too,
Bb-male and bb-female
Gametes- B,b(male) and b(female)
F1 offspring- Bb,bb
In the 2nd cross, however chances of getting blue eyed offsprings is there, but we can't predict whether the father is BB or Bb.
More chances are there of father having BB genotype.
Parents- BB X bb [BB-male and bb-female]
Gametes- B, b
F1 offspring- All Bb (Brown eyed)
But it can be in this way too,
Bb-male and bb-female
Gametes- B,b(male) and b(female)
F1 offspring- Bb,bb
In the 2nd cross, however chances of getting blue eyed offsprings is there, but we can't predict whether the father is BB or Bb.
More chances are there of father having BB genotype.