Question

A DNA molecule is described as a "double helix.” What does that mean?

Select one:
a. A DNA molecule is ladder-shaped and twisted.
b. A DNA molecule is shaped like a ladder crossing the cell nucleus.
c. A DNA molecule doubles every time a cell uses it.
d. A DNA molecule is ladder-shaped and twice as wide as it is long.

I think its A?

Answer 1

option A
A -T
C-G

Answer 2

u think very correct

Answer 3

Yes, it should be A