Variation and genetics – Online MCQs Test – Biology MCAT

1. Law of purity of gametes is:

2. If a homozygous red-flowered Mirabilis jalapa plant is crossed with a homozygous white-flowered plant, the first that generation would yield:

3. Mendel found that the F1 always resembled either one of the parents and that the trait of the other parent was not seen in them. This is due to

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

5. Variations provide raw materials for the process of:

6. One of the x chromosomes of a woman bears two linked genes for haemophillic and colour blindness. She marries a normal man. How will the progeny be?

7. When round and wrinkled were crossed, it gave all round. This round is:

8. A cross between red flowered and white flowered plants results in pink flowered plants in F1 when the F1 hybrids were self-fertilized, the resulting F2 generation revealed I red, 2 pink, I white progeny. The type of inheritance is the result of:

9. It is the chance of an event to occur

10. Type II Diabetes Mellitus usually occurs after about age:

11. Erythroblastosis fetalis is characterized by the symptom of:

12. Rh stands for:

13. In Erythroblastosis foctalis:

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

15. 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:

16. Lengthwise pairing of homologous chromosomes is called:

17. The blood group without antibody is:

18. How many genotypes can be produced by two alleles A and a?

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

20. In pleiotropy: