Q1. Which one of the following phenomena supports Darwin’s concept of natural selection in organic evolution ?

• A) Development of transgenic animals
• B) Production of “Dolly’, the sheep by cloning
• C) Prevalence of pesticide resistant insects
• D) Development of organs from ‘stem cells’ for organ transplantation.

Q2. The phenomenon ‘ontogeny repeats phylogeny’ is explained by

• A) recapitualtion theory
• B) Inheritcance theory
• C) mutation theory
• D) natural selection theory.

Q3. The presence of gill slits, in the embryos of vertebrates, supports the theory of

• A) metamorphosis
• B) biogenesis
• C) organic evolution
• D) recapitulation

Q4. Which is not a vestigial organ in man ?

• A) Nictitating membrane
• B) Tail vertebrae
• C) Vermiform appendix
• D) Nails

Q5. Which one is not a vestigia organ ?

• A) Wings of kiwi
• B) Coccyx in man
• C) Pelvic girdle of python
• D) Flipper of seal

Q6. By the statement ‘survival of the fittest’, Darwin meant that

• A) the strongest of all species survives
• B) the most intelligent of the species survives
• C) the cleverest of the species survives
• D) the species most adaptable to changes survives.

Q7. Which of the following are the two key concepts of Darwinian theory of evolution ?

• A) Genetic drift and mutation
• B) Adaptive radiation and homology
• C) Mutation and natural selection
• D) Branching descent and natural selection

Q8. According to Lamarckism, long necked giraffes evolved because

• A) nature selected only long necked ones
• B) humans preferred only long necked ones
• C) short necks suddenly changed into long necks
• D) of stretching of necks over many generations by short necked ones.

Q9. Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters ?

• A) Lack of pigment in cave-dwelling animlas
• B) Melanisation in peppered moth
• C) Absence of limbs in snakes
• D) Presence of webbed toes in aquatic birds

Q10. “Human population grows in geometric ratio while food materials increase in arithmetic proportion”. It is a statement from

• A) Darwin
• B) Bateson
• C) AmartyaSen
• D) Malthus.

Q11. Which one of the following scientist’s name is correctly matched with the theory put forth by him ?

• A) de Vries – Theory of natural selection
• B) Darwin – Theory of pangenesis
• C) Weismann – Theory of continuity of germplasm
• D) Pasteur – Theory of inheritance of acquired charcters

Q12. Single step large mutation leading to speciation is also called

• A) founder effect
• B) saltation
• C) branching descent
• D) natural selection

Q13. Hardy-Weinberg equilibrium is known to be affected by gene flow, genetic drift mutation, genetic recombination and

• A) evolution
• B) limiting facrtors
• C) saltation
• D) natural selection

Q14. The Hardy-Weinberg principle cannot operate if

• A) a population does not migrate for a longtime to a new habitat
• B) frequent mutations occur in the population
• C) the population has no chance of interaction with other populations
• D) free interbreeding occurs among all members of the population

Q15. Genetic drift operates only in

• A) larger populations
• B) Mendelian populations
• C) island populations
• D) smaller populations.

Q16. Which of the following statements is True ?

• A) Wings to birds and insects are homologous organs.
• B) Human hands and bird’s wings are analogous organs
• C) Human hands and bat’s wings are analogous organs.
• D) Flipper of penguin and dolphin are analogous organs

Q17. Replacement of the lighter-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) in England is the example of

• A) natural selection
• B) regeneration
• C) genetic isolation
• D) temporal isolation

Q18. Phenomenon of ‘industrial melanism’ demonstrates

• A) geographical isolation
• B) reproductive isolation
• C) natural selection
• D) induced mutation

Q19. presence of gills in the tadpole of frog indicated that

• A) fishes were amphibious in the past
• B) fishes evolved from frog-like ancestors
• C) frogs will have gills in future
• D) frogs evolved from gilled ancestors

Q20. The character that proves that frogs have evolved from fishes is

• A) their ability to swim in water
• B) tadpole larva in frogs
• C) similarity in the shape of the head
• D) their feeding on aquatic plants

Q21. Which is the correct order of increasing geological time scale for a hypothetical vertebrate evolution ?

• A) Cenozoic, Mesozoic, Palaeozoic, Proterozoic
• B) Cenozoic, Palaeozoic, Mesozoic, Proterozoic
• C) Proterozoic, Cenozoic, Palaezoic, Mesozoic
• D) Proterozoic, Palaeozoic, Mesozoic, Cenozoic

Q22. The ‘Devonian period’ is considered to be as

• A) age of fishes
• B) age of amphibians
• C) age of reptiles
• D) age of mammals

Q23. Amphibians were dominant during _______ period.

• A) Carboniferous
• B) Silurian
• C) Ordovician
• D) Cambrian

Q24. The primate which existed 15 mya was

• A) Homo habilis
• B) Australopithecus
• C) Ramapithecus
• D) Homo erectus

Q25. The extinct stone ancestor, who ate only fruits and hunted with stone weapons was

• A) Ramapithecus
• B) Australophecus
• C) Dryopithecus
• D) Homo erectus