3.16B: Describe a DNA Molecule as Two Strands Coiled to Form a Double Helix, the Strands being Linked by a Series of Paired Bases: Adenine (A) with Thymine (T), and Cytosine (C) with Guanine (G)

DNA: Two Strands of complementary base pairs (linked by Hydrogen bonds) coiled to form a Double Helix (spiral)

Diagram:

                        

Diagram showing the Structure of DNA molecule

BASE PAIRS:

BASE PAIR 1	BASE PAIR 2
ADENINE - THYMINE (A - T)	CYTOSINE - GUANINE (C - G)