Question

a.) ABO blood types are determined by a single gene with 3 alleles. Alleles A (I^A) and B (I^B) are co-dominant to allele O (i). Cecilia, a woman with blood type A whose father and mother both had blood types AB, marries a man named Joseph. Joseph has blood type B. Joseph’s mother had blood type O.  

What is Cecilia’s genotype with respect to blood type?

b.) ABO blood types are determined by a single gene with 3 alleles. Alleles A (I^A) and B (I^B) are co-dominant to allele O (i). Cecilia, a woman with blood type A whose father and mother both had blood types AB, marries a man named Joseph. Joseph has blood type B. Joseph’s mother had blood type O.

What is Joseph’s genotype with respect to blood type?

c.) ABO blood types are determined by a single gene with 3 alleles. Alleles A (I^A) and B (I^B) are co-dominant to allele O (i). Cecilia, a woman with blood type A whose father and mother both had blood types AB, marries a man named Joseph. Joseph has blood type B. Joseph’s mother had blood type O.

If Cecilia and Joseph have a child, what is the probability that the child has blood type A?

Answer 1

Cenotype Blood Type 11° | АО Тетя Тв1° Ів ІВ BB В Во I Не AB о твів т° 1° Cecilia's Parents Thr? | тята cecilia A ТІ" B Joseph Тв Joseph's Mother - 0 = 1 LO

i) Cecilia's Genotype will be IA IA thus, blood type A because both her parents. blood group is AB. :) Joseptie genotype with respect to blood type is I 18 because his blood group is B but his mother's is blood group is D. ii, Probability of Cecilia 8 Joseph's child blood group A JGINIA I LAJO IA so } 50% A IBIA ZA TAB 7 50% AB Probability is so %