ABO blood groups in humans are controlled by the gene I. It has three alleles - IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur? (a) Three (b) One (c) Four (d) Two

ABO blood groups in humans are controlled by the
gene I. It has three alleles - IA, IB and i. Since there
are three different alleles, six different genotypes are
possible. How many phenotypes can occur?
(a) Three (b) One
(c) Four (d) Two
by

1 Answer

Answer :

(c) Four
by

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