Build: Follow the steps given in the Gizmo to construct a molecule of DNA. (Note: For simplicity, this DNA molecule is shown in two dimensions, without the twist.) You are building left side 1st.
Stop when the hint reads: “The DNA molecule is complete.” In the spaces at right, list the sequence of nitrogenous bases on the left-hand side of the DNA molecule and the right-hand side.
Left side Right side
_____g________ _______c______
a
_____________ ______t_______
___c__________ ______g_______
_____t________ _______a______
_____g________ _______c______
___a__________ ______t_______
____c_________ _____g________
___t__________ _________a____
Adenine (A) joins to ___________thymine____ Thymine (T) joins to ____adenine___________