Slide 7

Question 1

Compare the chromosome shape in bacteria and eukaryotes

Answer 1

Bacteria: circular, associated with small amounts of protein
Eukaryotes: linear, associated with large amounts of protein

Question 2

What protein is responsible for packaging chromatin?

Answer 2

Histones

Question 3

DNA is a polymer. What are its monomers called

Answer 3

Nucleic acids

Question 4

Are purines or pyrimidines larger

Answer 4

Purines (A, G)

Question 5

What is another name for 5’ and 3’ end of DNA chain, respectively>

Answer 5

5’ : phosphate
3’ : hydroxyl

Question 6

Difference between ribose of DNA and RNA

Answer 6

For RNA, C2 is attached to H and an OH.

For DNA, C2 is attached to two H’s.

Question 7

What does the Chargaff’s rule state?

Answer 7

Number of T and A are the same, and number of C and G are the same

Question 8

Diameter of DNA helix

Answer 8

2 nm

Question 9

Name the bond that connected nitrogenous bases inside the DNA

Answer 9

Hydrogen bonds

Question 10

Why is CG bond stronger than AT

Answer 10

CG bonds are connected by 3 hydrogen bonds, while AT bonds are connected by 2 hydrogen bonds