DNA

Question 1

When do nucleotides become phosphorylated?

Answer 1

When they contain more than one phosphate group.

Question 2

What can nucleotides de components of?

Answer 2

Co enzymes such as NADP

Question 3

How are the two polynucleotide stands of DNA described?

Answer 3

As antiparallel

Question 4

What is the name of the covalent bond between the sugar and phosphate group?

Answer 4

Phosphodiester bond

Question 5

What are the different types of bases?

Answer 5

Purine- adenine or guanine

Or pyrimidine - thymine or cytosine

Question 6

How many H bonds between T and A

Answer 6

2

Question 7

How many H bonds between C and G

Answer 7

3

Question 8

What is the benefit of H bonds being used for base bonds?

Answer 8

So the dna can be unzipped

Question 9

What does the opposite direction of the two stands refer to?

Answer 9

The direction of the third and fifth carbon

Question 10

What is DNA wound around?

Answer 10

Histones

Question 11

What is the DNA inside the chloroplasts and mitochondria like?

Answer 11

A loop with no histones

Question 12

What is virus DNA like? (if the virus has any)

Answer 12

A loop of naked DNA like in bacteria