Question

The bonds that hold the two strands of DNA together come from what?

Answer 1

the attraction of phosphate groups

strong bonds between bases and sugars

carbon to carbon bonds in the sugar

weak hydrogen bonds between the bases

one of these

Step-by-step explanation:

Answer 2

The nitrogenous base pairs, which are linked by hydrogen bonds that also hold the strands together, are between this backbone.

There are 3 hydrogen bonds between guanine and cytosine.