Evolution Class 12 MCQ: Class 12 Biology MCQ Questions and Answer. Students get here all Important MCQ on Evolution Class 12.
Evolution Class 12 MCQ with Answers:
(1) The factor that leads to founder effect in a population is
(a) Mutation
(b) Genetic drift
(c) Natural Selection
(d) Genetic recombination
Ans: (d) Genetic recombination
(2) Embryological Support for evolution was proposed
(a) Ernst Heckel
(b) Karl Ernst Von Bear
(c) Charles Drawin
(d) Alfred Wallace
Ans: (a) Ernst Heckel
(3) The evolution of a Species is bussed upon the sum total of adoptive changes preserved by
(a) Natural Selection
(b) isolation
(c) Speciation
(d) human conservation
Ans: (b) isolation
(4) Genetic drift is on account of
(a) Variation
(b) mutation
(c) increase in population
(d) decrease in population
Ans: (d) decrease in population
(5) Balancing selection is concerned with the Successful reproduction of
(a) Homozygous recessives
(b) Homozygous individuals
(c) heterozygous individuals
(d) All of the above
Ans: (c) heterozygous individuals
(6) A species inhabitiny different geographical area is known as
(a) Sympatric
(b) allopatric
(c) Sibling
(d) Biospecies
Ans: (b) allopatric
(7) Quick change in phenotypes in a small band of Colonizers is called
(a) Founder effect
(b) Genetic bottleneck
(c) Genetic drift
(d) Gene flow
Ans: (a) Founder effect
(8) According to Oparin, which one of the following was not present in the Primitive atmosphere of the earth
(a) methane
(b) Oxygen
(c) Hydrogen
(d) Water Vapour
Ans: (b) Oxygen
(9) The last common ancestor of human is
(a) Pan troglodytes
(b) Homo neundethalensis
(c) Lemuridea
(d) Dormaeosaurus
Ans: (a) Pan troglodytes
(10) The earliest geological time period among the following is
(a) Cambrian
(b) Permian
(c) Jurassic
(d) Quaternary
Ans: (a) Cambrian
(11) What is the Hardy Weinberg Equation?
(a) P2 + q2 = 1
(b) P2 + q22 = 1
(c) P2 + q2 = 0
(d) P2 + 2pq + q2 = 1
Ans: (d) P2 + 2pq + q2 = 1
(12) P & q of the Hardy Weinberg equation represent of a diploid organism
(a) Frequency of only allele A
(b) Frequency of allele P
(c) Frequency of allele A & a
(d) Frequency of the only allele a
Ans: (c) Frequency of allele A & a
(13) Which one does not belong to the factors affecting the Hardy Wein bery principle?
(a) Genetic Drift
(b) Gene irrigation
(c) mutation
(d) Genetic drop
Ans: (d) Genetic drop
(14) Which is not a necessary condition of Hardy – Wein bery Equilibrium?
(a) Large Population
(b) Random Mating
(c) No mutation
(d) migration of individuals
Ans: (d) migration of individuals
(15) What tends to the formation of new phenotype?
(a) Pre – existing helpful mutations
(b) Pre – existing disadvantageous mutations
(c) Post – existing helpful mutations
(d) Post – existing advantageous mutations
Ans: (c) Post – existing helpful mutations
Evolution MCQ for Class 12For more updates follow our net explanations homepage