Give reasons for the following
a. Cytosine and guanine form three hydrogen bonds
b. Addition of acid...
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Biology
Give reasons for the following
a. Cytosine and guanine form three hydrogen bonds
b. Addition of acid to a DNA solution causes a change in itsabsorbance.
c. Adenosine is more soluble than adenine even though thelatter is smaller
d. Guanosine monophosphate is acidic
e. The base pairing of DNA becomes disrupted at high pH.
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Answer aIn a double stranded DNA CytosineC makes hydrogen bonds with Guanine G and Adenine A bondswith Thymine T There are three hydrogen bonds between C and G ascompared to 2 hydrogen bods between A and THydrogen atoms attached to highlyelectronegative atoms like O and N make hydrogen bonds with otheratoms In CG pairing the exocyclic NH2
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