MCQ on MENDELISM

MCQ on Mendelism

1.Two allelic genes are located on :
(1) The same chromosome
(2) Two homologous chromosomes
(3) Two-non-homologous chromosomes
(4) Any two chromosomes

2. How many character of pea pod were chosen by Mendel :-
(1) 7
(2) 5
(3) 4
(4) 2

3. The percentage of ab gametes produced by AaBb parent will be :-
(1) 12.5
(2) 25
(3) 50
(4) 75

4. When two hybrids Ttrr & Rrtt are crossed, the phenotypic ratio of offspring shell be :-
(1) 3:1
(2) 1:1:1:1
(3) 1:1
(4) 9:3:3:1

5. Mendel's law of segregation is based on separation of alleles during :-
(1) Gamete formation
(2) Seed formation
(3) Pollination
(4) Embryonic development

6. The allele which is unable to express its effect in the presence of another is called :-
(1) Co-dominant
(2) Supplementary
(3) Complementary
(4) Recessive

7. When flowers are unisexual then emasculation is done in :-
(1) Female
(2) Male
(3) 1 & 2 both
(4) None of these

8. Which technique is used by Mendel for hybridisation
(1) Emasculation
(2) Bagging
(3) Protoplast fusion
(4) 1 & 2 both

9. How many plants are dihybrid in F2 generation of dihybrid cross :-
(1) One
(2) Two
(3) Four
(4) Sixteen

10. When a plant have two different alleles of a gene it is called :-
(1) Homozygous
(2) Dioecious
(3) Heterozygous
(4) Monoecious

11. A pure tall plant can be differentiated from a hybrid tall plant :
(1) By measuring length of plant
(2) By spraying gibberalins
(3) If all plants are tall after self-pollination
(4) If all plants are dwarf after self-pollination

MCQ on Mendelism MCQ on Mendelism MCQ on Mendelism

12. Heterozygous tall plants were crossed with dwarf plants. what will be the ratio of dwarf plants in the progeny :-
(1) 50%
(2) 25%
(3) 75%
(4) 100%

13. Genetic constitution of an individual is represented by :-
(1) Genome
(2) Genotype
(3) Phenotype
(4) Karyotype

14. "Like begets like" an important and universal phenomenon of life, is due to :-
(1) Eugenics
(2) Inheritance
(3) dominance
(4) Crossing-over

15. Genes do not occur in pairs in :-
(1) Zygote
(2) Somatic cell
(3) Embryo
(4) Gametes

16. One of the following did not constitute the seven contrasting pairs of characters noticed by Mendel
(1) Height of the plants
(2) Shape of the leaves
(3) Shape of pod
(4) Colour of pod

17. How many types of gametes are expected from the organism with genotype AABBCC:-
(1) One
(2) Two
(3) Four
(4) Eight

18. Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due
to which enzyme :-
(1) Amylase
(2) Invertase
(3) Diastase
(4) Absence of starch branching enzyme

19. Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants would
be, tall, red flowered :-
(1) 50%
(2) 75%
(3) 25%
(4) 100%

20. According to Mendelism which character is showing dominance-
(1) Terminal position of flower
(2) Green colour in seed coat
(3) Wrinkled seeds
(4) Green pod colour