The answer is most simply A
The double helix unwinds and each strand forms a template for a new strand — I’m pretty sure!
I Lava You
A bat
Are the answers
A mass movement is movements of masses of bodies of soil, bed rock, rock, debris, soil etc. which usually occur along steep-sided hills and mountains because of the pull of gravity
The complementary strand is
taaccgat
T -A
G-C
Always!
