Eukaryotes regulation

Question 1

How is it controlled?

Answer 1

capping of 5’ end mRNA, protects mRNA from degradation, ribosome can recognise mRNA.

Splicing

3’ gets phosphorylated, cleaved near end of gene. Important for transport and transcription.

Question 2

What do activators or repressor proteins bind to DNA?

Answer 2

regulatory element proteins

Question 3

core promoter?

Answer 3

Basal T machinery

Question 4

What binds to promoter?

Answer 4

Activator or repressor bind to promoter region, just before Basal machinery

Question 5

What makes up the basal machinery?

Answer 5

Transcription factors are RNA2

Question 6

What combinations can repressors and activators be?

Answer 6

homodimer or heterodimer

Question 7

What is SRE in plants?

Answer 7

A regulatory sequence for stress, needed for proteins in response to draught

Question 8

What is needed first in a plant stress response?

Answer 8

The stressor (draught), activates transcription of regulatory protein, The RP binds to SRE= TRANSCRIPTION

Question 9

What does cooperation mean?

Answer 9

different genes regulated by the same regulatory sequence and bind the same TF.