1493: Match List I with List II and select the correct answer using the codes given below the lists :
List I
I. Theory of Mutation
II. Theory of Evolution
III. One gene one enzyme hypothesis
IV. Operon concept
List II
(A) Beadk and Tatum
(B) Jacob and Monod
(C) Darwin
(D) De Vries
Codes:
(a) I-C, II-D, III-A, IV-B
(b) I-D, II-C, III-A, IV-B
(c) I-D, II-C, III-B, IV-A
(d) I-C, II-D, III-B, IV-A
1495: The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
1. There are no clouds or water vapour in the lower stratosphere.
2. There are no vertical winds in the lower stratosphere.
which of the statements given above is/are correct in this context?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2