Q. 31. Nutrient cycles are of two types:
(A) Gaseous and solid
(B) Liquid and sedimentary
(C) Gaseous and sedimentary
(D) Aquatic and Gaseous
Answer:
Explanation:
Q. 32. Technology of biogas production in India was developed due to the efforts of –
A. GEAC
B. ICAR
C. IARI
D. IRRI
E. KVIC
Choose the correct answer from the options given below:
(A) A and B only
(B) C and D only
(C) B and D only
(D) C and E only
Answer:
Explanation:
Q. 33. The bacterium responsible for breakdown of cellulose in a biogas plant is
(A) Acetobacter aceti
(B) Lactobacillus
(C) Clostridium
(D) Methanobacterium
Answer:
Explanation:
Q. 34. With reference to processing of hn RNA, which of the following statements is/are INCORRECT?
A. Introns are removed and exons are joined directly splicing.
B. Capping & Tailing occurs at 5′ end & 3′ end respectively.
C. Addition of 200-300 adenylated residues means capping.
D. Addition of guanosine triphosphate takes place at 5′ end.
E. Processing take place in the nucleus and converts hn RNA into functional RNA.
Choose the correct answer from the options given below:
(A) B only
(B) C only
(C) B and C only
(D) B and D only
Answer:
Explanation:
Q. 35. Match List I with List II
List I (Name of Scientists)
A. Alec Jeffreys
B. Fancois Jacob and Jacque Monod
C. Marshall Nirenberg
D. Masselson Stahl
List II (Discovery)
I. Lac Operon
II. Deciphering of genetic code
III. Semiconservative replication of DNA
IV. DNA Fingerprinting
Choose the correct answer from the options given below:
(A) A-IV, B-I, C-II, D-III
(B) A-I, B-III, C-IV, D-II
(C) A-II, B-III, C-I, D-IV
(D) A-IV, B- II, C – III, D – I
Answer:
Explanation: