First slide

Inheritance of One Gene

Question

How many different genotypes and phenotypes are possible in the ABO blood grouping types in human beings?

Easy

A

Six genotypes and six phenotypes
B

Four genotypes and six phenotypes
C

Six genotypes and four phenotypes
D

Eight genotypes and six phenotypes

Solution

ABO blood group system is controlled by the gene I. The gene I has three alleles I^A, I^B and I^O. Since there are three different alleles, six different combination of these three alleles are possible I^AI^A ,I^A I^O, I^B I^B, I^B I^O, I^A I^B and I^OI^O or ii, i.e., six genotypes. Four phenotypes are A, B and AB and O.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App