Given below is a table showing the genotypes of blood groups in the human population. S.no Genotype Phenotype 1. W Y 2. I B I O Z 3. I A I B AB 4. X O Identify the genotype W and X, and the phenotype Y and Z.

See the answer table given below. S.no Genotype Phenotype 1. I A I O A 2. I B I O B 3. I A I B AB 4. ii O From the above table, we can tell that Y and Z are blood groups A& B respectively because in A blood group containing peoples have the A antigen on the surface of their red blood cells, anti-B antibodies in the serum at the same time B blood group peoples will have B antigen and anti-A antigen both in serum only. W and X are alleles of respective blood groups.

Given below is a table showing the genotypes of blood groups in the human population. S.no Genotype Phenotype 1. I A I O A-Phenotype for Y 2. I B I O B-Phenotype for Z 3. I A I B AB 4. X O Name the pattern of inheritance exhibited by the phenotypes Y and Z in the table.

See the answer table given below S.no Genotype Phenotype 1. I A I O A (Y) 2. I B I O B (Z) 3. I A I B AB 4. ii O Y: The allele I A is dominant over i and hence, the phenotype is A group. So it follows law of dominance. Z: The alleles I B is dominant over I O hence the phenotype is B. It also follows the same patterns of inheritance.

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ISC Biology Class XII>Chapter 5 - Principles of Inheritance and Variation>Chapter Practice

Rashmi Gupta and Gitika Bhati Solutions for Chapter: Principles of Inheritance and Variation, Exercise 1: Chapter Practice

Author:Rashmi Gupta & Gitika Bhati

Rashmi Gupta Biology Solutions for Exercise - Rashmi Gupta and Gitika Bhati Solutions for Chapter: Principles of Inheritance and Variation, Exercise 1: Chapter Practice

Attempt the practice questions on Chapter 5: Principles of Inheritance and Variation, Exercise 1: Chapter Practice with hints and solutions to strengthen your understanding. ISC Biology Class XII solutions are prepared by Experienced Embibe Experts.