Answer:
C
Explanation:
D. They float on convection currents in the mantle.
A. U - A - C
B. A - U - G
C. Adenosine, Uracil, Guanine
1: B
2: C
3: B
4: Either A or B
Genitic traits.
This is when a trait such as eye color or hair color is passd on to a child of two adults.