AIPMT MAINS 2010 Zoology Darwin's Theory Multiple Correct Question
Given below are four statements (A⁻D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements. Statements: (A) Wings of butterfly and birds look alike and are the results of __ (i) __ evolution. (B) Miller showed that CH₄, H₂, NH₃ and __ (i) __ when exposed to electric discharge in a flask resulted in formation of __ (ii) __. (C) Vermiform appendix is a __ (i) __ organ and an __ (ii) __ evidence of evolution. (D) According to Darwin evolution took place due to __ (i) __ and __ (ii) __ of the fittest.
(D) – (i) Small variations, (ii) Survival, (A) – (i) Convergent
(A) – (i) Convergent, (B) – (i) Oxygen, (ii) nucleosides
(B) – (i) Water vapour, (ii) Amino acids (C) – (i) Rudimentary, (ii) Anatomical
(C) – (i) Vestigial, (ii) Anatomical (D) – (i) Mutations, (ii) Multiplication
Correct Answer
Detailed Explanation
According to Darwin, evolution took place due to small variations & survival of the fittest. Wings of butterfly & birds are analogous or convergent. Vermiform appendix is vestigial organ.
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