Variation and genetics – Online MCQs Test – Biology MCAT

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

2. 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

3. The breakdown product of RBC is:

4. The members of one pair of genes segregate independently of the other pairs, this is:

5. Law of Dominance was derived by:

6. Number of Autosomes present in humans:

7. Regarding colour blindness, “when a normal male marries carrier female”, which is the correct statement?

8. In pleiotropy:

9. Law of independent assortment can be proved by a cross

10. The sex-linked genes are present In a significant way on:

11. 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:

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

13. The blood group without antibody is:

14. Which one of the following crosses shows 3: 1 ratio?

15. 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:

16. Which of the following crosses is a test cross?

17. It test cross gives 5O% dominant and 50% recessive characters it means the parent is:

18. Each human being possesses ________ pairs of chromosomcs.

19. Mendelian recombination’s are due to:

20. Erythroblastosis fetal is can occur if marriage occurs between