Question

this is a model of a dna molecule. which type of bond, denoted by the arrows, allows dna to be readily replicated?
○ covalent bond
○ ionic bond
○ hydrogen bond
○ peptide bond

Explanation:

Hydrogen bonds between the base - pairs in DNA are relatively weak and can be easily broken, which allows the two strands of DNA to separate during replication. Peptide bonds are in proteins, ionic bonds are not the main bonds for DNA replication ease, and covalent bonds within the DNA backbone are strong and not related to easy replication in the same way.

Answer:

B. hydrogen bond