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Question Bank No: 1

1. An important evidence in favour of organic evolution is the occurrence of

a)		Homologous organs only
b)		Analogous and vestigial organs
c)		Homologous and vestigial organs
d)		Homologous and Analogous organs

2. Analogous structures are

a)		Anatomically similar and functioning similarly
b)		Anatomically similar but performing different functions
c)		Anatomically similar but performing similar functions
d)		Anatomically different and functioning differently

3. When two species of different genealogy come to resemble each other as a result of adaptations,the phenomenon is termed:

a)		Microevolution
b)		Divergent evolution
c)		Convergent evolution
d)		Co-evolution

4. Which one of the following statements is correct?

a)		There is no evidence of the existence of grills during embryogenesis of mammals
b)		Stem cells are specialized cells
c)		Ontogeny repeats phylogeny
d)		All plant and animal cells are totipotent

5. Which one of the following is also called Sewall Wright Effect?

a)		Gene Pool
b)		Gene flow
c)		Genetic Drift
d)		Isolation

6. Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

a)		Migration
b)		Divergent evolution
c)		Adaptive radiation
d)		Natural selection

7. Which one of the following is incorrect about genetic drift?

a)		Random change in allele frequency in a population
b)		Significant only in large populations
c)		A mechanism for the evolution of new species
d)		Founder effect is a special case

8. What was the most significant trend in the evolution of modern man(Homo sapiens) from his ancestors?

a)		Increasing brain capacity
b)		Upright posture
c)		Shortening of jaws
d)		Binocular vision

9. Small and spherical vessels ,bounded by a membrane like layer of amino acids are

a)		Liposomes
b)		Ribozymes
c)		Protocell
d)		Microspheres

10. Selective breeding of organisms(Animal husbandary and plant breeding programs) for specific desirable characteristics are examples of

a)		Mutation
b)		Artificial Selection
c)		Reverse evolution
d)		Natural Selection

11. In nature,the process by which different organism evolve similar traits is called

a)		Genetic drift
b)		Artificial selection
c)		Divergent evolution
d)		Convergent evolution

12. Darwin judged the fitness of an individual by

a)		Ability to defend itself
b)		Strategy to obtain food
c)		Number of offspring
d)		Dominance over other individuals

13. Devergent evolution of a single group of organisms in a new environment is called

a)		Adaptive radiation
b)		Uniformitarianism
c)		Catastrophism
d)		Convergent evolution

14. Fossils are most commonly preserved in

a)		Metamorphic rocks
b)		Igneous rocks
c)		Sedimentory rocks
d)		Any type of rock

15. A characteristic of viruses is.

a)		With independenat metabolism
b)		Without independent metabolism
c)		Multiplication outside living cells
d)		Culture in cell for medium

16. In a random mating population in equilibrium which of the following brings about a change in gene frequency in a non- directional.

a)		Random drift
b)		Selection
c)		Migration
d)		Mutation

17. The wings of bat and bird are.

a)		Homologous but not analogous
b)		Analogous but not homologous
c)		Both homologous and analogous
d)		Neither homologous nor analogous

18. Coneervates are

a)		Colloidal droplets
b)		Contains nucleoprotein
c)		A + B
d)		Protobiont

19. Lamarckism was disproved by

a)		Wallace
b)		Weismann
c)		Muller
d)		Morgan

20. The term coneervates was coined by

a)		Louis Pasteur
b)		Redi
c)		Oparin
d)		Aristotle

21. Distribution of animals on earth is called.

a)		Exobiology
b)		Palaentology
c)		Zoogeography
d)		Biogeography

22. The inherited blood disease which give resistance against malaria is.

a)		Haemophilia
b)		Sickle cell anaemia
c)		Haemolytic anaemia
d)		Tuberculosis

23. Pelvic girdle of python is a

a)		Vestigial organ
b)		Horologers organ
c)		Analogous organ
d)		Atavistic organ

24. Mesozoic era is called the age of

a)		Fishes
b)		Birds
c)		Amphibians
d)		Reptiles

25. Respiration in the first formed organisms was.

a)		Aerobic
b)		Anacrobic
c)		Both aerobic and anaerobic.
d)		Neither aerobic nor anaerobic

26. The ultra violet radiation from the sun do not reach is because of the presence of.

a)		${CO}_{2}$ in the atmosphere
b)		Ozone layers in the atmosphere
c)		Water vapour in the atmosphere
d)		Dust particles in the atmosphere.

27. Which of the following sets are vestigial structures in man.

a)		Hair, Olecranon process, Coccyx and vermiform appendix
b)		Wisdom tooth, mammary glands, coccyx and patella
c)		Coccyx, nictitating membrane, appendix and ear muscles
d)		Hair, ear ossicles, patella and attas

28. Geographic and reproductive isolation are most closely associated with

a)		Speciation
b)		Extinction
c)		Succession
d)		Over production

29. Industrial Melanism is an example of.

a)		Darkening of skin due to smoke from industries
b)		Protection resemblance with the surroundings.
c)		Defensive adaptation of skin against ultra violet radiations
d)		Drug resistance

30. Archaeopteryx is the connecting link between

a)		Fishes and amphibians
b)		Amphibians and reptiles
c)		Reptiles and aves
d)		Aves and mammals

31. The statement "Nothing in biology make sense except in the light of evolution" wasgiven by.

a)		Theodosius Dobzhansky
b)		Charle's Darwin
c)		A. R. Wallace
d)		Joseph Hooker

32. Life can not originate from inorganic material at present because.

a)		Very low atmospheric pressure
b)		High degree of environmental pollution
c)		Very high amount of oxygen in the atmosphere
d)		Absence of raw material

33. The simple organic compounds that may have first evolved in the direction of origin

a)		Proteins and nucleic acids
b)		Protein and amino acids
c)		Urea and nucleic acids
d)		Urea and amino acids

34. What are the constituents of Miller's experiment

a)		$H_{2} O$ , N $H_{3}$ , $H_{2}$ , ${CH}_{4}$
b)		${NH}_{3}$ , $H_{2}$ , ${CH}_{4}$ , ${CO}_{2}$
c)		${CH}_{4}$ , ${NH}_{3}$
d)		$O_{2}$ , ${CO}_{2}$ , ${CH}_{4}$