List the steps of replication and explain what occurs at each step

Question 1

What is the first step of DNA replication?

Answer 1

The first step is unwinding the double helix structure of the DNA molecule.

Question 2

True or False: DNA replication occurs in the nucleus of eukaryotic cells.

Answer 2

True.

Question 3

Fill in the blank: The enzyme that unwinds the DNA strands during replication is called __________.

Answer 3

helicase.

Question 4

What role does DNA polymerase play in DNA replication?

Answer 4

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Question 5

Which strand of DNA is synthesized continuously during replication?

Answer 5

The leading strand.

Question 6

What are Okazaki fragments?

Answer 6

Okazaki fragments are short segments of DNA synthesized on the lagging strand during replication.

Question 7

What happens during the priming step of DNA replication?

Answer 7

RNA primers are synthesized by primase to provide a starting point for DNA synthesis.

Question 8

Multiple Choice: Which enzyme is responsible for replacing RNA primers with DNA?

Answer 8

D. DNA polymerase I.

Question 9

What is the final step of DNA replication?

Answer 9

The final step is the ligation of Okazaki fragments by DNA ligase.

Question 10

Short Answer: Why is DNA replication considered semi-conservative?

Answer 10

Because each new DNA molecule consists of one original strand and one newly synthesized strand.