Nissl bodies are mainly composed of (1) Proteins and lipids (2) DNA and RNA (3) Nucleic acids and SER (4) Free ribosomes and RER Answer : (4) Free ribosomes and RER...
The chemical component that is invariably found in all viruses is : (1) proteins (2) lipids (3) DNA (4) RNA Answer : proteins...
Chromosomes consist of (1) DNA and lipids (2) RNA and amino acids (3) DNA and proteins (4) RNA and sugar Answer : DNA and proteins...
The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis...
Viroids differ from viruses in having; (1) DNA molecules without protein coat (2) RNA molecules with protein coat (3) RNA molecules without protein coat (4) DNA molecules with protein coat Answer : (3) RNA molecules without protein coat...
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