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