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New species may be formed if : (i) DNA...

New species may be formed if :
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place

A

(i) and (ii)

B

(i) and (iii)

C

(ii), (iii) and (iv)

D

(i), (ii) and (iii)

Text Solution

Verified by Experts

The correct Answer is:
A
No change in the genetic material, and lack of mating cannot result in origin of 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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  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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  16. Select the statements that describe characteristics of genes : (i) g...

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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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