DNA Replication

Question 1

During which phase of the cell cycle is DNA replicated?

Answer 1

S phase

Question 2

How did the structure of DNA lead to the prediction of how DNA is replicated?

Answer 2

Since only A pairs with T and only G pairs with C, each parent strand can be used as a template to create the daughter strands

Question 3

What does it mean for DNA replication to be semi-conservative?

Answer 3

Each new double helix contains one original parent strand and one newly synthesized daughter strand

Question 4

The first enzyme required for DNA replication:

Answer 4

Helicase

Question 5

__________:
Step 1: a different DNA polymerase removes the RNA primer
Step 2: this DNA polymerase then replaces the RNA sequence with DNA
Step 3: DNA ligase creates the phosphodiester bond between the DNA fragments

Answer 5

What happens primers created in the process of DNA replication

Question 6

What is a telomere?

Answer 6

A repetitive DNA sequence found
at either end of linear chromosomes

Question 7

Enzyme name | Enzyme function
———————-|—————————
| Adds nucleotides to
________ | the DNA daughter
| strand one by one

Answer 7

DNA polymerase

Question 8

Enzyme name | Enzyme function
———————-|—————————
| Creates an
________ | RNA primer

Answer 8

Primase

Question 9

Enzyme name | Enzyme function
———————-|—————————
| Unwinds the
________ | parental DNA
| strands

Answer 9

Helicase

Question 10

Enzyme name | Enzyme function
———————-|—————————
| Forms a
| phosphodiester
________ | bond to join two
| DNA fragments

Answer 10

DNA Ligase

Question 11

Enzyme name | Enzyme function
———————-|—————————
| Restores tips of
| chromosomes that
________ | were shortened
| during replication

Answer 11

Telomerase