DNA structure & Replication

Question 1

What are the parts of a nucleotide?

Answer 1

Phosphate group, Sugar, and Nitrogen base

Question 2

What are the 4 bases of DNA? How do they pair up?

Answer 2

Adenine pairs with Thymine
Cytosine pairs with Guanine. They pair up by hydrogen bonds.

Question 3

What type of bond holds the nitrogen bases together?

Answer 3

Hydrogen Bond

Question 4

Where is DNA found in us?

Answer 4

Chromosomes

Question 5

What is the shape of DNA?

Answer 5

Double Helix

Question 6

What is DNA replication? Why does it happen?

Answer 6

Where the cell creates a copy of the DNA. Happens because the daughter strands have to recieve the same genetic information.

Question 7

What enzyme unzips the DNA molecule?

Answer 7

DNA Helicase

Question 8

What enzyme adds new nucleotides in replication?

Answer 8

DNA polymerase

Question 9

What proofreads the new nucleotides?

Answer 9

DNA polymerase

Question 10

Where does the parent strand end up after replication?

Answer 10

Winds back into helix