Which one of the following statements is incorrect?A. DNA chemically is less reactive and structurally more stable when compared to RNA.B. A nitrogenous base is linked to the pentose sugar through a phosphodiester linkage to form a nucleoside.C. The presence of thymine at the place of uracil confers additional stability to DNA.D. Meselson and Stahl provided experimental evidence for semiconservative DNA replication.

Which one of the following statements is incorrect?A. DNA chemically i

1.	Which one of the following statements is incorrect?A. DNA chemically is less reactive and structurally more stable when compared to RNA.B. A nitrogenous base is linked to the pentose sugar through a phosphodiester linkage to form a nucleoside.C. The presence of thymine at the place of uracil confers additional stability to DNA.D. Meselson and Stahl provided experimental evidence for semiconservative DNA replication.
Answer» Correct Answer - B

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Probes used in DNA finger-printing initiallyA. 19 base long oligonucleotideB. single stranded RNAC. minisatelliteD. all of the above
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If an inheritable mutation is observed in a population at high frequency it is reffered to asA. LinkageB. DNA polymorphismC. Sequence annotationD. Expressed sequence tag
Lactose (Lac) operon is regulated by :A. Lac repressor onlyB. Lac repressor and CAP-cGMP complexC. Lac repressor and CAP-cAMP complexD. CAP-cAMP and CAP-c-GMP complex
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DNA sequences that code for protein are known as :A. intronsB. exonsC. control regionsD. intervening sequences

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