ABO blood grouping is controlled by gene I which has three alleles and show co dominance. There are six genotypes. How many phenotypes in all are possible?

Question

ABO blood grouping is controlled by gene I which has three alleles and show co dominance. There are six genotypes. How many phenotypes in all are possible? (A) Three (B) Six (C) Five (D) Four

Tardigrade Admin · Accepted Answer

The six genotypes are IAIA or IAi,IBIB or IBi,IAIB,ii The four phenotypes are -A, text B, text AB, text O .

Q. ABO blood grouping is controlled by gene I which has three alleles and show co dominance. There are six genotypes. How many phenotypes in all are possible?

Three

Six

Five

Four

The six genotypes are $I^{A} I^{A}$ or $I^{A} i, I^{B} I^{B}$ or $I^{B} i, I^{A} I^{B}, ii$ The four phenotypes are $- A, B, A B, O$ .

Q. ABO blood grouping is controlled by gene I which has three alleles and show co dominance. There are six genotypes. How many phenotypes in all are possible?

Three

Six

Five

Four

The six genotypes are IAIA or IAi,IBIB or IBi,IAIB,ii The four phenotypes are −A,B,AB,O .

The six genotypes are $I^{A} I^{A}$ or $I^{A} i, I^{B} I^{B}$ or $I^{B} i, I^{A} I^{B}, ii$ The four phenotypes are $- A, B, A B, O$ .