neet ug entrance exam

Which of the following is NOT an essential criterion of a molecule that acts as genetic material? (A) It should be chemically and structurally stable. (B) It should be able to undergo replication. (C) It should be capable of undergoing changes required for evolution. (D) It should be composed of complementary and antiparallel strands.

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Negatively charged DNA is wrapped around a positively charged histone complex, forming (A) deoxyribonucleic acid (B) histone octamer (C) nucleosome (D) nucleoid

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…….. proposed the scheme for DNA replication. (A) Mussels on and Stahl (B) Watson and Crick (C) Hershey and Chase (D) Frederick Griffith

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Which is the predominant site for the control of gene expression in prokaryotes? (A) Transport of mRNA from the nucleus to the cytoplasm (B) Formation of the primary transcript (C) Regulation of splicing (D) Control of the rate of transcriptional initiation

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