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Why are no two individuals identical exc...

Why are no two individuals identical except the identical twins?

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Two individuals are never identical because of their genetic differences which bring variations in shape, form, size and colour of organisms. Identical twins on the other hand are similar because they are genetically alike.
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ICSE-EVOLUTION-COMPETITION CORNER (Assertion and Reason Type Questions (For AIIMS aspirants))
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  4. Assertion: The mechanism of origin and evolution can be suggested. R...

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  6. Assertion: Mutations are basically different from fluctuations. Reas...

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  7. Assertion: Best adapted and less adapted individuals reproduce at th...

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  8. Assertion: Lederberg's experiment explains the genetic basis of adapta...

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  9. Assertion: Ostrich has vestigial wings and feather but is a cursorial ...

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  10. Assertion: All the animals have three germ layers in their development...

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  11. Assertion: Frog has a fish-like tadpole larva in its life history Re...

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  12. Assertion: All the living organisms have certain basic similarities. ...

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  13. Assertion: Forelimbs of different vertebrates are basically similar. ...

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  14. Assertion: Dinosaurs were connecting links between reptiles and birds....

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  15. Assertion: Many physical and chemical agents induce inheritable mutati...

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  16. Assertion: There is an everlasting competition between individuals hav...

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  17. Assertion: Evolution is adaptation through generations. Reason: Only...

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  18. Assertion: Natural selection is not the exclusive force of speciation....

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  19. Assertion: Human evolution occurred in Asia and Africa. Reason: The ...

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  20. Assertion: Among the primates, chimpanzee is the closest relative of m...

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