Heredity and Evolution class 10 Questions and Answers pdf | Theories of Evolution & Palaeontology
1. Which of the period is also knowm as age of invertebrates?
(a) Ordovician period
(b) Devonian period
(c) Carboniterous period
(d) Jurassic period
Ans. a
2. First mammals appeared ini .. periods.
(a) ordovician
(b) devonian
(c) carboniferous
(d) triassic
Ans. d
3. Holocene epoch is known as age of
(a) man
(b) reptile
(c) dinosaur
(d) fish
Ans. a
4. Which of these is not a living fossil?
(a) Archaeopteryx
(b) Duck-billed platypus
(c) Richter
(d) Frog
Ans. a
5. During fossilisation, the soft parts disintegrate and the gaps created in this manner are filled by mineral deposits such as silica, calcium carbonate, etc. Such fossils are called
(a) petritactions
(b) embedding
(c) cementing
(d) moulding
Ans. a
6. Study of fossils is called
(a) ethology
(b) palaeontology
(c) etiology
(d) anthropology
Ans. b
7. Archaeopteryx is the connecting link between
(a) reptile and mammals
(b) reptile and amphibian
(c) reptile and fish
(d) reptile and bird
Ans. d
8. The fossils in terms of faecal pellets hat contain evidences of the food eaten, is known as
(a) coprolites
(b) imprints
(c) reptile and fish
(d) impressions
Ans. a
9. How do we know, how old fossils are?
(a) By digging the earth layer of fossils and later comparing the age of the layer by the rock formation type
(b) By dating fossils through detecting the ratios of different isotopes of the same element in the tossil
(c) Both (a) and (b)
(d) None of the above
Ans. c
10. The oldest microfossil so far of age 3.5 billion year ago was
(a) coacervates
(b) eobionts
(c) microspheres
(d) cyanobacteria
Ans. d
Evolution multiple choice questions and answers pdf | Theories of Evolution & Palaeontology
11. Which of the following requires seeing a founder effecr
(a) High rate of new mutation
(b) Population bottleneck in which the population is reducet age relatively small number of breeding individuals
(c) Lethality of homozygotes with a mutant allele
(d) Selection in favour of heterazygotes
Ans. b
12. Evidence from fossils records are obtained by calculating age of fossil found in
(a) metamorphic rocks
(b) sedimentary rocks
(C) igneous rocks
(d) earth crust
Ans. b
13. Era of reptiles and gymnosperm is
(a) precambrian
(b) palaeozoic
(c) mesozoic
(d) cenozoic
Ans. c
14. The oldest known fossilised prokaryotes were laid dow approximately
(a) 3.5 million years ago
(b) 3.5 billion years ago
(c) 1.7 million years ago
(d) 1.7 billion years ago
Ans. b
15. The oldest known fossil eukaryotes are about .. old.
(a) 3.5 million years ago
(b) 35 billion years ago
(c) 1.7 million years ago
(d) 1.7 billion years ago
Ans. d
16. Existence of coal or petroleum can be known from the study of
(a) ecology
(b) bacteriology
(c) economic botany
(d) Palaeobotany
Ans. d
17. Fossil contents of the elementary canal are known as
(a) casts
(b) corprolite
(c) trails
(d) impressions
Ans. b
18. Identify the correct chronological sequence periods of palaeozoic and mesozoic era
(a) Cretaceous Permian Jurassic – Triassic
(b) Cretaceous Carboniferous Permian – Triassic Jurassic
(c) Carboniferous →Permian – Triassic → Jurassic Cretaceous
(d) Carboniferous Jurassic Permian – Triassic – Cretaceous
Ans. c
19. If you want to see a dinosaur, it would be best to set the controls of your machine for the
(a) Mesozoic era
(b) Coenozoic era
(c) Palaeozoic
(d) Proterozoic
Ans. a
20. The presence of vestigial organs in man supports
(a) Synthetic theory
(b) Germplasm theory
(c) Natural selection theory
(d) The theory of evolution, but not Lamarck’s theory of inheritance of acquired character
Ans. d
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21. The book origin of species was published in
(a) 1809
(b) 1859
(c) 1858
(d) 1956
Ans. b
22. Theory of spontaneous generation was given by
(a) Pasteur
(b) Van Helmont
(c) Redi
(d) Spallanzani
Ans. b
23. Stanley Miller proposed origin of life by
(a) biogenesis
(b) abiogenesis
(c) chemical synthesis
(d) None of these
Ans. c
24. Which of the following is formed in Stanley Miller’s classic experiments?
(a) Mitrospheres
(b) Nucleic acid
(c) Amino acid
(d) UV rays
Ans. c
25. Resemblance between widely different groups due to a common adaptation is known as
(a) parallel evolution
(b) divergent evolution
(c) retrogressive evolution
(d) convergent evolution
Ans. d
26. Which of the following is not the vestigial organ in man?
(a) Wisdom tooth
(b) Vermiform appendix
(c) Tail vertebra
(d) Nail
Ans. d
27. Peripatus is a connecting link between
(a) Mollusca and Echinodermata
(b) Coelenterata and Porifera
(c) Annelida and Arthropoda
(d) Segmented metanephridia
Ans. c
28. A baby has been born with a small tail. It is a case of exhibiting
(a) atavism
(b) mutation
(c) metamorphosis
(d) retrogressive evolution
Ans. a
29. The study of plant fossil is called
(a) Palynology
(b) Palaeobotany
(c) Paedology
(d) Palaeophytology
Ans. b
30. The organism separated by geographical barrier are termed
(a) allopatric
(b) sympatric
(c) sibling
(d) neopatric
Ans. a
31. Factors in the formation of a new species are
(a) isolation and competition
(b) competition and variation
(c) cormpetition and mutation
(d) isolation and mutation
Ans. b
32. The phenomenon of ‘industrial melanism’ demonstrates
(a) natural selection
(b) induced mutation
(c) reproductive isolation
(d) geographical isolation
Ans. a
33. Analogy is found between
(a) wings of bird and bats
(b) wings of bat and butterfly
(c) hands of man and flipper of whale
(d) hands of man and forelimbs of horse
Ans. b
34. An important evidence in favour of organic evolution is the occurrence of
(a) analogous and vestigial organs
(b) homologous and analogous organs
(c) homologous and vestigial orgaris
(d) homologous organ only
Ans. c
35. The biogenetic law was proposed by
(a) F Redi
(b) Richter
(c) Weismann
(d) Haeckel
Ans. d
36. Palaeozoic era is the era of
(a) fishes
(b) reptiles
(c) birds
(d) mammals
Ans. a
37. Dinosaurs disappeared during
(a) jurassic
(b) triassic
(c) cretaceous
(d) permian
Ans. b
38. In which era life had not originated?
(a) Palaeozoic
(b) Archaeozoic
(c) Azoic
(d) Mesozoic
Ans. c
39. Origin of life occurred in
(a) carboniferous
(b) precambrian
(c) ordovician
(d) silurian
Ans. b
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40. Modern birds rose in
(a) Palaeozoic
(b) Cenozoic
(c) Mesozoic
(d) Archaeozoic
Ans. b
41. The theory of inheritance of acquired characters was proposed by
(a) Hugo de Vries
(b) Lamarck
(c) Weismann
(d) Darwin
Ans. b
42. Who wrote the origin of species?
(a) Lamarck
(b) Darwin
(c) de Vries
(d) Mendel
Ans. b
43. The ultimate source of all variations is
(a) sexual reproduction
(b) hormonal action
(c) natural selection
(d) mutations
Ans. d
44. Continuity of germplasm was given by
(a) Lamarck
(b) Weismann
(c) Haeckel
(d) Darwin
Ans. b
45. Darwinism cannot explain
(a) mimicry
(b) adaptation
(c) struggle for existence
(d) tusks of elephants
Ans. d
