Question

During DNA replication, DNA polymerase is only used to replicate the leading strand (Polymerase is not used on the lagging strand).

True

False

The phrase "DNA replicating away from helicase" describes the lagging strand.

True

False

The phosphate-sugar backbone connects nucleotides within a strand using ____ bonds between the phosphate of one nucleotide and carbon number ___ of the previous nucleotide.

		hydrogen..... 5'
		covalent..... 3'
		covalent..... 5'
		hydrogen..... 3'

Which bonds are broken during DNA replication?

		hydrogen bonds
		phosphodiester bonds
		pentose bonds

Answer 1

I believe the correct answer to be:

1) FALSE
As DNA polymerase is responsible to replicate both strands.

2) TRUE
As the leading strand synthesize in the direction of the helicce while the lagging strand synthesize the DNA against it.

3) Option B) Covalent / 3'

4) Option A) Hydrogen bonds.
That keeps the 2 strands of DNA together.

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