Latest KVPY Aptitude Question SOLUTION: Vestigial organs such as the appendix exist because (A) they had an important function during development which is not needed in the adult (B) they have a redundant role to play if

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Previous Question: You remove four fresh tobacco leaves of similar size and age. Leave "leaf 1" as it is, smear "leaf 2" with vaseline on the upper surface, "leaf 3" on the lower surface and "leaf 4" on both the surfaces. Hang the leaves for a few hours and you observe that leaf 1 wilts the most, leaf 2 has wilted, leaf 3 wilted less than leaf 2 and leaf 4 remains fresh. Which of the following conclusion is most logical ? (A) tobacco leaf has more stomata on the upper surface (B) tobacco leaf has more stomata on the lower surface (C) stomata are equally distributed in upper and lower surfaces (D) no conclusion on stomatal distribution can be drawn from this experiment Next Question: Mendel showed that unit factors, now called alleles, exhibit a dominant/ recessive relationship. In a monohybrid cross, the .................. trait disappears in the first filial generation (A) dominant (B) co-dominant (C) recessive (D) semi-dominant

(#M40027124) KVPY question General Ability Test Keep an EYE

Vestigial organs such as the appendix exist because
(A) they had an important function during development which is not needed in the adult
(B) they have a redundant role to play if an organ with similar function fails
(C) nature cannot get rid of structures that have already formed
(D) they were inherited from an evolutionary ancestor in which they were functional: Asked In KVPY (10 years ago); Unsolved; Is this Puzzle helpful? (1) (1) Submit Your Solution

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Previous Question: You remove four fresh tobacco leaves of similar size and age. Leave "leaf 1" as it is, smear "leaf 2" with vaseline on the upper surface, "leaf 3" on the lower surface and "leaf 4" on both the surfaces. Hang the leaves for a few hours and you observe that leaf 1 wilts the most, leaf 2 has wilted, leaf 3 wilted less than leaf 2 and leaf 4 remains fresh. Which of the following conclusion is most logical ? (A) tobacco leaf has more stomata on the upper surface (B) tobacco leaf has more stomata on the lower surface (C) stomata are equally distributed in upper and lower surfaces (D) no conclusion on stomatal distribution can be drawn from this experiment Next Question: Mendel showed that unit factors, now called alleles, exhibit a dominant/ recessive relationship. In a monohybrid cross, the .................. trait disappears in the first filial generation (A) dominant (B) co-dominant (C) recessive (D) semi-dominant

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