A wave pulse happens when a wave travels through a medium from one end to the other. The wave pulse causes the medium to move up and down as it travels through the medium, but it does not cause the medium to be moved from one end to the other. Draco creates a wave pulse in a spring by moving one end of the spring up and down. The picture below shows the wave pulse moving from one end of the spring to the other.

Draco is going to create another wave pulse by moving the spring up and down again. Which of these must be true if he moves the spring up and down more slowly the next time?
A.
The wave pulse will be shorter.
B.
The wave pulse will be higher.
C.
The wave pulse will be longer.
D.
The wave pulse will travel faster.

the wave pulse will travel faster.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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