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Which of the following corresponds to mu...

Which of the following corresponds to mutagens

A

Chemicals and radiations which cause changes in the genetic material of a cell

B

Various archaebacteria that produce methane

C

Chemicals which react with ozone molecules and destroy them

D

RNA molecules that infect plant and cause diseases

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The correct Answer is:
A
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TRUEMAN BIOLOGY-EVOLUTION-MULTIPLE CHOICE QUESTIONS
  1. Which one of these was a flying dinosaur

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  2. Sickle-cell anaemia is caused due to the substitution of :

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  3. Which of the following corresponds to mutagens

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  4. The idea of mutations was brought forth by

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  5. Which of the following is a vestigial structure in man ?

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  6. Which of the following statements is incorrect?

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  7. According of Darwin, the organic evolution is due to

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  8. The tendency of population to remain in genetic equilibrium may be dis...

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  9. Variation in gene frequencies within populations can occur by chance r...

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  10. The process by which organisms with different evolutionary history evo...

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  11. The eye of octopus and eye of cat show different patterns of structure...

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  12. Which one of the following are analogous structures

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  13. Forelmbs of cat, lizard used in walking, forelimbs of whale used in sw...

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  14. Which is the most common mechanism of genetic varisation in the poplul...

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  15. A population will not exist in Hardly-Weinberg equilbrium if

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  16. The wings of a bird and the wings of an insect are

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  17. Industrial melanism is an example of

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  18. Which of the following structures is homologus to the wing of a bird?

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  19. Following are the two statements regarding the origin of life : A." ...

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  20. Analogous structures are a result of

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