Nucleic Acids Flashcards

1
Q

What is the structure of a nucleotide?

A
  • Base
  • Pentose sugar
  • Phosphate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which nucleotides and purines and which and pyrimidines? Which have two rings?

A
o	Purine (2 Rings) 
	Adenine
	Guanine
o	Pyrimidine 
	Cytosine
	Thymine
	Uracil
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What makes up the structure of DNA and RNA?

A
  • 5’ end (phosphate)
  • 3’ end (OH)
  • Phosphodiester linkages on backbone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many H bonds are between A and T? G and C?

A
  • 2 H bonds between A and T

* 3 H bonds between G and C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How is Z form DNA different to A and B form?

A

It is left handed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the most common form of DNA?

A

B form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What can allow DNA to bend back on itself?

A

• DNA can bend back on itself in vitro if it has palindromic sequences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What allows RNA to have function?

A
  • RNA can ben back and become functional

* Allows different conformation (e.g. tRNA, ribosome)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly