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.

Question

Assertion-ReasonStructure of NucleotidesCBSE PYQ

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Differentiate between:

What is the difference between a nucleoside and nucleotide?

Biological Functions of Nucleic Acids

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

What is the difference between a nucleoside and a nucleotide?

Define the following terms :

Nucleotides are joined together by