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According to the evolutionary theory, fo...

According to the evolutionary theory, formation of a new species is generally due to.

A

sudden creation by nature.

B

accumulation of variations over several generations

C

clones formed during asexual reproduction.

D

movement of individuals from one habitat to another.

Text Solution

Verified by Experts

The correct Answer is:
B
Theory of sudden creation has long been disproved by scientists. It is the accumulation of variations over successive generations which results in origin of a new species.
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OSWAL PUBLICATION-HEREDITY-NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS )
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  2. The maleness of a child is determined by

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  3. A zygote which has an X-chromosome inherited from the father will deve...

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  4. Select the incorrect statement :

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  5. New species may be formed if : (i) DNA undergoes significant change...

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  6. Two pea plants one with round green seeds (RRyy) and another with wri...

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  7. A basket of vegetables contains carrot, potato, radish and tomato. Whi...

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  8. Select the correct statement.

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  9. If the fossil of an organism is found in the deeper layers of earth, ...

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  10. Which of the following statement is not true with respect to vari...

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  11. A trait in an organism is influenced by

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  12. Select the group which shares maximum number of common characters

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  13. According to the evolutionary theory, formation of a new species is g...

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  14. From the list given below, select the character which can be ...

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  15. The two versions of a trait (character) which are brought in by the m...

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  16. Select the statements that describe characteristics of genes : (i) g...

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  17. In peas, a pure tall plant (TT) is corssed with a short plant (tt). ...

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  18. The number of pair(s) of sex chromosomes in the zygote of humans is

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  19. The theory of evolution of species by natural selection was given by

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  20. Some dinosaurs had feathers although they could not fly but birds have...

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