Question

answer this for 1 mark

Answer 1

A DNA molecule consists of two strands that form the iconic double-helix “twisted ladder”, whose backbone, which made of sugar and phosphate molecules, is connected by rungs of nitrogen-containing bases. DNA is composed of 4 different bases: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
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Answer 2

DNA contains the instructions needed for an organism to develop , survive and reproduce. To carry out these functions DNA sequences are must be converted into messages that can be used to produce proteins, which are complex molecules that do most of the work in our bodies