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Module 1: Biological Molecules
2.1.2 Nucleic Acids

(a) state that deoxyribonucleic acid (DNA) is a polynucleotide, usually double stranded made up of nucleotides
containing the bases adenine (A), thymine (T), cytosine (C) and guanine (G)
Nucleic acids come in two forms: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

(b) state…

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Module 1: Biological Molecules
Sugar Deoxyribose sugar Ribose sugar
Strands Double stranded Single stranded

(c) describe, with the aid of digrams, how hydrogen bonding between complementary base pairs (A to T, G to C)
on two antiparallel DNA polynucleotides leads to the formation of a…

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Module 1: Biological Molecules

Structure to Function in DNA:
Structure Function
Sequences of bases Information storage the information is in the form of codes to build proteins
Long A large amount of information can be stored
Basepairing rules Means that complementary strands of information can be stored
Double helix structure…

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Module 1: Biological Molecules


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