Lec 3: RNA structure and transcription Flashcards
(8 cards)
1
Q
Which are the purines?
A
Adenine
Guanine
2
Q
Which are the pyrimidines?
A
Thymine
Cytosine
Uracil
3
Q
What are the main structural differences between RNA and DNA?
A
RNA: Ribonucleic acid, the ribose has two OH groups. Single stranded.
DNA: Deoxyribonucleic acid, the ribose has one OH group. Double stranded.
4
Q
What are the subunits of the RNAP holoenzyme?
A
2 alpha (from rpoA)
1 Beta (from rpoB)
1 Beta prime (from rpoC)
1 omega (from rpoZ)
1 sigma (from rpoD)
5
Q
What are the subunits of the RNAP core enzyme?
A
2 alpha (from rpoA)
1 Beta (from rpoB)
1 Beta prime (from rpoC)
1 omega (from rpoZ)
6
Q
Which subunits constitutes the catalytic core of the prokaryotic RNAP?
A
1 Beta (from rpoB)
1 Beta prime (from rpoC)
7
Q
Is a primer needed for prokaryotic transcription?
A
No.
8
Q
A
