Class 12 biology Principles of Inheritance and Variation Free test quiz

1. Person having genotype IA IB would show the blood group as AB. This is because of

2. Multiple alleles control inheritance of

3. A cross between pure tall pea plant with green pods and dwarf pea plant with yellow pods will produce dwarf F2 plants out of 16

4. A plant of F1-generation has genotype “AABbCC”. On selfing of this plant, the phenotypic ratio in F2-generation will be

5. In humans, the dominance relationship between the A and B alleles of the ABO blood group gene is an example of

6. _________ is a type of trait whose phenotype is influenced by more than one gene

7. 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:

8. Mendel studied interitance of seven pairs of traits in pea which can have 21 possible combinations. If you are told that in one of these combinations, independent assortment is not observed in later studies, your reaction will be

9. A Across between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?

10. The ‘X’ body of Henking was observed in