In: Statistics and Probability
A child with blood type O has a mother with blood type A and a father with blood type B. (a) What are the genotypes of the parents? (b) List all possible genotypes of children from these two parents. (c) What is the probability that a child from these two parent types has blood type O?
Please Help!
a.
bood type O : gegnotype : OO
therefore both parents have atleast one O
blood group A genotype : AA or AO
mother genotype : AO {both parents have atleast one O}
blood group B genotype : BB or BO
father genotype : BO {both parents have atleast one O}
mother genotype : AO
father genotype : BO
b.
inherited from father = B | inherited from father = O | |
inherited from mother = A | offspring = AB | offspring = AO |
inherited from mother =O | offspring = BO | offspring = OO |
possible genotypes of children = AB,AO,BO,OO
c.
no. of offspring in table having O blood type (genotype : OO) = 1
total offsprings in table = 4
P(child has blood type O) = (no. of offspring having O blood type) / (total offsprings)
= 1/4
= 0.25
(please UPVOTE)