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Body Fluids And Circulations

Question
CBSEENBI11025806

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

Solution

D.

Four

The six genotypes are as follows:

IAIA or IAi or IBIB or IBi  or IAIor ii