1491: Rickets is caused due to:

(a) Deficiency of Vitamin A

(b) Deficiency of Vitamin D

(c) Deficiency of Vitamin C

(d) Low intake of proteins
1492: Who among the following being a renowned poet was a good painter also?

(a) Rabindra Nath Tagore

(b) Amrita Shergil

(c) A. N. Tagore

(d) S. N. Bannerjee
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
1494: Through which one of the following Straits, does a tunnel connect the United Kingdom and France ?

(a) Strait of Gibraltar
(b) Denmark Strait
(c) Strait of Dover
(d) Davis Strait
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