1551: There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?
1. Discharge of nutrients from the estuaries.
2. Run-off from the land during the monsoon.
3. Upwelling in the seas.
Select the Correct answer from the codes given below:
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
1552: Consider the following techniques/phenomena:
1. Budding and grafting in fruit plants
2. Cytoplasmic male sterility
3. Gene silencing
Which of the above is/are used to create transgenic crops?
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) None
1553: The country scene is one of desolation, with dry, deep and narrow gullies. There is little vegetation and that too thorny shrub variety. Human settlements are scarce. The scene may belong to:
(a) West Rajasthan
(b) Bundelkhand region
(c) Malwa region
(d) Chambal valley
1554: Match List I with List II and select the correct answer using the codes given below the Lists :
List I List II
(Achievement in genetics) (Scientists)
I. Discovery of tramsdiction and Conjugation in bacteria (A) Khurana
II. Establishing the sex-linked inheritance (B) Kornberg
III. Isolation of DNA polymerase form E. coli (C) Lederberg
IV. Establishing the complete genetic code (D) Morgan
(E) Ochoa
Codes:
(a) I-D, II-C, III-B, IV-A
(b) I-C, II-D, III-A, IV-E
(c) I-D, II-C, III-A, IV-E
(d) I-C, II-D, III-B, IV-A
1555: Match List-I with List-II and select the correct answer using the code given below the lists :
List-I(Person) List-II(known as)
A. Bhajan Sopori 1. Bharatnatyam dancer
B. Birju Maharaj 2. Exponent of Santoor
C. Priyadarsini Govind 3. Mridangam maestro
D. T.V.Gopalakrishnan 4. Kathak dancer
(A) 3 4 1 2
(B) 3 1 4 2
(C) 2 4 1 3
(D) 2 1 4 3