Answer:
H bonding between the nitrogen bases of the two strands
Explanation:
There are two types of nitrogen bases found in DNA: purines and pyrimidines.
Purines are Adenine and Guanine.
Pyrimidines are Thyamine and Cytosine.
Adenine of one strand bonds with Thyamine of other strand by 2 hydrogen bonds. Likewise, guanine and cytosine of opposite strands bind by 3 hydrogen bonds. In this way two strands of DNA are held together.
Answer:
Hydrogen bonds between the base pairs hold the two strands of DNA together.
Explanation:
Watson and Crick used Rosalind Franklin's important work imaging DNA molecules to make several observations.
