AS Biology UNIT 2 F212 Nucleic acids (2.1.1 B) PART 2D

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Nucleotides

·         -Nucleic acids are chains of nucleotides which are covalently bonded together

·         -Remember, nucleotides of the same sugar could be binded together, forming a long chain of polynucleotide.

THE CRUCIAL FACT YOU NEED TO REMEMBER AND MUST REMEMBER!

·         RNA has a pentose sugar called RIBOSE

·         DNA has a pentose sugar called deoxyribose

Organic bases: purines and pyrimidines

·         There are two organic base grups called the…