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2386. Nutrients are recycled in the atmosphere with the help of certain microorganisms referred to as
A. producers
B. consumers
C. decomposers
D. None of these
Explanation:
2387. Which of the following structures are commonly present in animal cells and not in plant cells ? 1. Mitochondria 2. Lysosomes 3. Ribosomes 4. Centrosomes
A. 1 and 3
B. 2 and 4
C. 1, 2 and 3
D. 2, 3 and 4
Explanation:
2388. Energy transfers of Kerbs cycle and electron transport chain takes place in
A. chloroplasts
B. lysosomes
C. mitochondria
D. cytoplasm
Explanation:
2389. The genetic code can be translated through an intermediate, adaptor molecule by
A. ATP
B. m RNA
C. r RNA
D. t RNA
Explanation:
2390. The unit structure of which gene is made up of is
A. RNA
B. nucleotides
C. DNA
D. endoplamic reticulum
Explanation:
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