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Differentiate between:
Give reasons for any 3 of the following observations :
Name any two bases which are common to both DNA and RNA.
Which vitamin deficiency causes : (1) Bone deformities in children ? (2) Pernicious anaemia ?
Which one among the following bases is present in RNA but usually not in DNA ?
Assertion (A) : The backbone of DNA and RNA molecules is a chain consisting of heterocyclic base, pentose sugar and phosphate group. Reason (R) : Nucleotides and nucleosides mainly differ from each other in presence of phosphate group.
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