Question

1. the weak type of bond holding together the two sides of the dna molecule, between the nitrogen bases, is which type of bond? a. peptide b. hydrogen c. ionic d. lipid e. covalent

Explanation:

DNA's two - strand structure is held together by hydrogen bonds between complementary nitrogen - bases (adenine - thymine and cytosine - guanine). Peptide bonds are in proteins, ionic bonds involve charged ions, lipids are a different class of biological molecules, and covalent bonds are stronger and not the type holding DNA strands together.

Answer:

B. Hydrogen