Multiple Choice Quiz on Principles of Inheritance and Variation

This genetics quiz is designed to assess your basic knowledge in ‘Principles of Inheritance and Variation’. Questions come under ‘medium’ category. Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking 'Get score'. Percentage score will be displayed along with right answers.
1. The primary effect of gene for sickle cell anemia
sickle shaped blood corpuscles
poor blood circulation
change in beta chain of hemoglobin
2. 'Theory of inheritance of the acquired character' was proposed by
3. Double lines in pedigree analysis shows
Sex unspecified
Unaffected offspring
Consaguineous mating
Normal mating
4. Atavism means
Inheritance of a trait by mother
Inheritance of a trait by father
Siblings show common character
Inheritance of trait of a distinct ancestor not shown by the parents
5. Number of types of gametes produced by a mono hybrid is
6. Which one of the following is extranuclear inheritance
Maternal inheritance
Organelle inhertiance
Plastid inheritance
All of these
7. Pseudo alleles are
Genes with different loci where are very close producing related phenotypic effect
Gene with same loci and control same trait
Genes identical to other genes
Gene with different loci and control same trait
8. The total of all harmful and lethal genes which are present in individuals are called
Gene pool
Genetic drift
Genetic load
9. Mendel's law of purity of gametes was formulated on the basis of
Test cross
Back cross
Dihybrid cross
Reciprocal cross
10. If Red and White seed color shows a ratio of 1:4:6:4:1 in F2, it is due to:
Duplicate genes
Epistastic gene
Polygenic trait controlled by three genes
Polygenic trait controlled by two genes
Score =
Correct answers:
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