Replication of DNA

Question 1

When does replication occur?

Answer 1

During the interphase of the cell cycle.

Question 2

What is the semi conservative replication model?

Answer 2

Where each DNA strand pairs up with a new complementary strand. Resulting in two half old half new strands of DNA.

Question 3

What happens to the free floating nucleotides?

Answer 3

The free floating nucleotides within the cell get attached to the unzipped parent strands that act as templates.

Question 4

Function of DNA

Answer 4

The molecule that governs the process of heredity.

Question 5

Function of RNA

Answer 5

Nucleic acid that plays a role in gene expression and protein synthesis.

Question 6

Major steps of Replication

Answer 6

1. ) Helicase - unwinds DNA at origins of replication
   2.) Primase - puts down RNA primer to start replication process
   3.) DNA polymerase - adds complementary bases to leading strand ( new 5’ to 3’)
   4.) Lagging Strand - grows in the 3’ to 5’ direction by the addition of the okazaki fragments
   5.) DNA ligase - seals the fragments together on the lagging strand