Variation and genetics – Online MCQs Test – Biology MCAT

1. It is the chance of an event to occur

2. In pleiotropy:

3. Any genetic trait which is transmitted through sex chromosomes is called:

4. A gene or locus which suppresses or masks the actual affect o; gene at another locus: the phenomenon called:

5. Diabetes Mellitus is caused by a deficiency of:

6. Blood group, also known as “UniversaI Donor” is:

7. The genotype of a dog can be best determined by:

8. An individual with contrasting alleles is called

9. In Erythroblastosis foctalis:

10. Which of the following is an example of a dihybrid cross?

11. What is a risk of colour blind child in a family when father is colour blind but mother is normal?

12. Number of chromosomes present in Male Grasshopper:

13. Cross fertilization of a phenotypically dominant individual with a homozygous recessive individual is:

14. Law of Dominance was derived by:

15. Acquiring of information about the phenotypes of family members to infer the genetic nature of a trait from the pattern of its inheritance is:

16. In test cross if the parent whose genotypes is to be determined is heterozygous then it gives:

17. Genes A and B are necessary for normal hearing. A deaf man marries a deaf woman and all their children have normal hearing. The genotypes of the parents are:

18. All other chromosomes except X and Y chromosomes are called

19. Variations provide raw materials for the process of:

20. Which of the following condition represents a case of co-dominant genes?