Question

question 29 (multiple choice worth 2 points) (03 02 mc) what would happen if the bases in dna strands were connected by a bond other than a hydrogen bond? dna polymerase would not be able to form complementary strands of dna. each nitrogenous base would not be able to form a base pair with any of the other bases. it would be more difficult for dna to unzip since it would require more energy to break the bonds. the dna molecule would be unstable because the two strands would more easily separate.

Explanation:

Hydrogen bonds between DNA bases are crucial for maintaining DNA structure and function. If bases were connected by a stronger bond than hydrogen - bond, it would be more difficult to unzip the DNA during processes like replication and transcription as more energy would be required to break the bonds. DNA polymerase needs the DNA to be unzipped to form complementary strands. Also, base - pairing specificity is based on hydrogen - bonding capabilities of the nitrogenous bases. A different bond would disrupt this.

Answer:

It would be more difficult for DNA to unzip since it would require more energy to break the bonds.