NCERT Solutions for Chapter: Principle of Inheritance and Variation, Exercise 1: MULTIPLE-CHOICE QUESTIONS

Person having genotype I^AI^B would show the blood group as AB. This is because of? 

Occasionally, a single gene may express more than one effect. The phenomenon is called

In a certain taxon of insects, some have 17 chromosomes, and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are

The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to

It is said that Mendel proposed that the factor controlling any character is discrete and independent. His proposition was based on the

Two genes 'A' and 'B' are linked. In a dihybrid cross involving these two genes, the ${\mathrm{F}}_1$ heterozygote is crossed with homozygous recessive parental type (aabb). What would be the ratio of offspring in the next generation?

In the ${\mathrm{F}}_2$ generation of a Mendelian dihybrid cross, the number of phenotypes and genotypes are

Mother and father of a person with ‘O’ blood group have ‘A’ and ‘B’ blood group, respectively. What would be the genotype of both mother and father?