DOWNLOAD MOBILE APPLICATION TO LEARN MORE: GENETICS MCQ FOR NEET
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: GENETICS MCQ FOR NEET
Table of Contents
GENETICS MCQ FOR NEET
1. Mendel’s Law of independent assortment holds good for genes situated on the:
a. non-homologous chromosomes
b. homologous chromosomes
c. extra nuclear genetic element
d. same chromosome
2. Occasionally, a single gene may express more than one effect. The phenomenon is called:
a. multiple allelism
b. mosaicism
c. pleiotropy
d. polygeny
3. In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are:
a. males and females, respectively
b. females and males, respectively
c. all males
d. all females
4. The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to:
a. quantitative trait
b. Mendelian trait
c. polygenic trait
d. maternal trait
5. It is said that Mendel proposed that the factor controlling any character is discrete and independent. This proposition was based on the:
a. results of F3 generation of a cross.
b. observations that the offspring of a cross made between the plants having two contrasting characters shows only one character without any blending.
c. self pollination of F1 offsprings
d. cross pollination of parental generations
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6. Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?
a. 1 : 1 : 1: 1
b. 9:3:3:1
c. 3:1
d. 1:1
7. In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are:
a. phenotypes – 4; genotypes – 16
b. phenotypes – 9; genotypes – 4
c. phenotypes – 4; genotypes – 8
d. phenotypes – 4; genotypes – 9
8. Mother and father of a person with ‘O’ blood group have ‘A’ and ‘B’ blood group respectively. What would be the genotype of both mother and father?
a. Mother is homozygous for ‘A’ blood group and father is heterozygous for ‘B’
b. Mother is heterozygous for ‘A’ blood group and father is homozygous for ‘B’
c. Both mother and father are heterozygous for ‘A’ and ‘B’ blood group, respectively
d. All of these
9. A genome is:
a. A set of chromosomes present in an organism
b. A set of chromosomes inherited from one parent
c.Two sets of chromosomes, one inherited from one parent and the other. inherited from another parent
d. All of these
10. An individual with two identical members of a pair of genetic factor is called:
a. Heterozygous
b. Hybrid
c. Homozygous
d. Hemizygous
ANSWERS:
- a
- c
- a
- b
- c
- a
- d
- c
- a
- c
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