Which of the following statements is/ are correct? |
(i) Variations are actually differences among individual organisms or groups of organisms caused either by genetic differences or by environmental factors. |
(ii) The sources of variations are mutation and genetic recombination. |
(iii) Variation always brings survival advantage. |
(iv) Speciation takes place when geographically isolated populations have variations. |
(v) Darwin's theory of natural selection proposed that new species arise by slow accumulation of advantageous variations over a period of time. |
A) Only (i)
B) (i) and (ii)
C) (i), (ii), (iv) and (v)
D) All (i), (ii), (iii), (iv), (v)
E) None of these
Correct Answer: C
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