Question

dna replication: answer the following questions. questions: 1) look at the picture to the left. it is demonstrating dna replication. there are two key enzymes that play a role in dna replication. drag the two enzyme labels below to where they belong on the diagram (hint: look at the lime green arrows): helicase dna polymerase 2) which organelle is dna stored in (eukaryotic cells)? your answer: 3) during what phase of the cell cycle is dna replicated? your answer: 4) there are 4 bases in dna. replicate the strand of below: original dna a c t t a g replicated dna

Explanation:

Step1: Identify enzyme functions

Helicase unwinds DNA, so it should be placed at the replication fork where the DNA is being separated (where the lime - green arrows are indicating the separation). DNA polymerase synthesizes new DNA strands, so it should be placed along the strands where new nucleotides are being added.

Step2: Recall DNA storage in eukaryotic cells

In eukaryotic cells, DNA is stored in the nucleus.

Step3: Recall cell - cycle phase for DNA replication

DNA replication occurs during the S (synthesis) phase of the cell cycle.

Step4: Apply base - pairing rules

A pairs with T, and C pairs with G. So for the original DNA strand A C T T A G, the replicated DNA strand is T G A A T C.

Answer:

1. Helicase at the replication fork, DNA polymerase along the strands where new nucleotides are added.
2. Nucleus
3. S phase
4. T G A A T C