| Column-I | Column-II | ||
| A. | Saltation | I. | Darwin |
| B. | Formation of life was preceded | II. | Louis Pasteur |
| C. | Reproductive fitness | III. | De Vries |
| D. | Life comes from pre-existing life | IV. | Oparin and haldance |
A) A-III; B-IV; C-I; D-II
B) A-IV; B-III; C-II; D-I
C) A-II; B-III; C-I; D-IV
D) A-I; B-IV; C-III; D-II
Correct Answer: A
Solution :
[a] Saltation theory was given by de Vries who was a Dutch botanist working with primroses. He believed that a new species had suddenly sprung into existence as a mutation. He theorized that new species "saltated" (leaped), that is continually sprung into existence. Oparin and Haldane give origin of life, according to which life evolved in the oceans during a period when the atmosphere was reducing ? containing \[{{H}_{2}},{{H}_{2}}O,N{{H}_{3}},C{{H}_{4}},\] and \[C{{O}_{2}}\] but no free \[{{O}_{2}}\] Reproductive fitness was given by Darwin. Louis Pasteur was a French chemist and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurisation. According to him, life comes from pre-existing life.
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