Answer:
False
Explanation:
A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.
Answer:
<u>one thousand millionth of a metre</u>
I believe it’s b but correct me if I’m wrong
Answer:
Alexander Fleming
Explanation:
Which scientist developed the idea that microorganisms can cause diseases?
Paul Ehrlich
The root word of Unicellular already tells you the answer. Uni means only one cell. So the answer is one cell.