NEET : Multiple Choice questions: Incomplete dominance

1. In which of the following genetic mechanism a hybrid recieve intermediate characters of both the parents..

A. Dominance 

B. Codominance

C. Polygenic inheritance 

D. Incomplete dominance 

Answer :  D Explanation 

2. In which of the following plant genetic mechanism incomplete dominance can be seen

A. Snapdragon

B.Dog flower

C. Antirrhinum 

D. All of the above

Answer :  D Explanation

3. What are the phenotype of  hybrid formed in F2 generation that reflect incomplete dominance?.

A. Red (3) & white (1)

B. Pink (3) & red (1)

C. Red(1) Pink(2) & white (1)

D. Pink(1) white(1) & Red(2)

Answer :  C Explanation

4. What are the genotype of  hybrid formed in F2 generation that reflect incomplete dominance?.

A. RR (3) & rr (1)

B. Rr (3) & rr (1)

C. RR(1) Rr(2) & rr (1)

D. Rr(1) rr(1) & RR(2)

Answer :  C Explanation

5. What is  the genotype  ratio in F2 generation that reflect incomplete dominance?.

A. 3 : 1

B. 1 : 1

C. 1 : 2 : 1

D. 9 : 1

Answer :  C Explanation

6. What is  the phenotype ratio in F2 generation that reflect incomplete dominance?.

A. 3 : 1

B. 1 : 1

C. 1 : 2 : 1

D. 9 : 1

Answer :  C Explanation

7. Which of the following statement is correct for the incomplete dominance.

A. It  gives different phenotypic and genotypic ratio after a cross in second generation.

B. It deviate phenotypic ratio of law of dominance given by Mendel. 

C. The hybrid resembles with either of one of parent in first generation 

D. Human blood group system is an example of incomplete dominance.

Answer :  B Explanation

8. What percentage of pink plant will be produced if a cross is made between Rr and rr.

A. 50%        B. 100%

C. 25%.       D. 75%

Answer : A

9. Which of the following statement is correct for the incomplete dominance.

A. This mechanism has been described on the basis of Dihybrid cross.

B. It results same ratio of genotype and phenotype both.

C. Mirabilis jalapa or 4 o'clock plant show incomplete dominance.

D. Hybrid does not resembles with either of parents.

Answer :  A Explanation

10.When two genes are present together then both alleles of this gene are expressed incompletely or partially called as

A. Dominance 

B. Codominance

C. Polygenic inheritance 

D. Incomplete dominance 

Answer :  D Explanation