MCQs On Genetics and Evolution With Free Answers PDF

Genetics and Evolution NEET Questions With Answers pdf

NCERT Solutions For Class 12 Science Biology Genetics and Evolution: In this article, we will provide you detailed NCERT Solutions For class 12 science biology Genetics and Evolution. These heredity and evolution class 10 exercise answers were prepared by the best faculty in India to score good marks in the subject Science.

Also working on NCERT Solutions For Class 12 Science biology topic Genetics and Evolution  will give you a strong foundation on the competitive exams like JEE, NEET, UPSC, etc., Read on to find out everything about NCERT Solutions For Class 11 and 12 Science Chapter of Heredity and Evolution.

31. The test cross ratio shown by the genotype Tt is

(a) 9:3: 3:1

(b) 1:1

(c) 1

(d) 1:1: 1:1

Ans:- B

32. The test cross ratio shown by the genotype AABBCCDdEE will be

(a) 1:1

(b) 1: 1:1:1

(c) 1:1:1:1:1:1:1:1

(d) 1

Ans:- A

33. The number of genotypic recombinations possible due to the 3 alleles in case of human blood group system are

(a) 4


(c) 8

(d) 12

Ans:- B

34. The number of types of phenotypes formed in case of polygeny dealing with human skin colour is

(a) 5

(b) 7

(c) 8


Ans:- B

35. The phenotypic ratio in the F2 generation of a case of polygeny dealing with two pairs of polygenes is

(a) 1:2: 1

(6) 9:3:3:1


(d) 1:6:15: 20: 15:6:1

Ans:- C

36. Who proposed the experimental evidence of polygenic inheritance ?

(a) Davenport

(b) Kolreuter

(c) Nilson-Ehle

(d) None of the above

Ans:- C

37. In biparental reproduction, the offspring

(a) Differs from both the parents

(b) Shows no change from the maternal parent 

(C) Shows no change from the paternal parent

(d) Shows mixtures of characters from both parents

Ans:- D

38. Mendel was

(a) A physiologist

(b) A plant breeder

(c) A cytologist

(d) A taxonomist

Ans:- B

39, Mendel is famous for his experiments on

(a) Pisum sativum

(b) Drosophila melanogaster

(d) Oenothera lamarckiana

(c) Neurospora crassa

Ans:- A

40. Which of the following represents a pair of contrasting characters?

(a) Allele (or allelomorphs)

(b) Phenotype

(c) Homozygous

(d) Heterozygous

Ans:- A

41. geometrical device which helps in visualizing all the possible combinations of male and female gametes is called

(a) Bateson square

(b) Mendel square

(d) Payen’s square

(C) Punnett square

Ans:- C

42. If a plant heterozygous for tallness is selfed, the Fy generation has both tall and dwarf plants. It proves the principle of

(b) Segregation

(a) Dominance

(d) Incomplete dominance T2

(c) Independent assortment

Ans:- B

43. Segregation of hereditary factors, occurs in plants during the process of

(b) Gamete formation

(a) Spore formation

(d) Disjunction

(c) Fertilisation

Ans:- B

44. An offspring of two homozygous parents differing from one another by alleles at only one gene locus is known as

(b) Monohybrid

(a) Back cross


(d) Trihybrid

Ans:- B

45. Somaclonal variations are:

(a) Variations produced in tissue culture

(b) Variations produced during sexual reproduction

(c)Variations caused by mutagens

(d) Variations caused by gamma rays

Ans:- A

46. A clone is a collection of genetically

(a) Identical individual obtained by vegetative reproduction

(b) Identical individual produced by sexual reproduction

(c) Different individual produced by sexual reproduction

(d) Gene pool

Ans:- A

47. Number of characters studied in garden pea by Mendel were

(a) Five

(b) Three etovert

(C) Six

(d) Seven

Ans:- D

48. The process of removing stamens from the flower bud during hybridisation is called

(a) Crossing

(b) Selfing


(d) Copying

Ans:- C

49. Which of the following characters of pea was not studied by Mendel ?

(a) Length of plant

(b) Size of seed 

(c) Colour of pod

(d) Shape of pod

Ans:- B

50. Most extensively studied material in genetics is

(a) E. coli

(b) Maize

(C) Pea

(d) Drosophila

Ans:- D

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