Lecture 15

Question 1

CTD of pol II coordinates pre-mRNA modifications how

Answer 1

different phosphorylation patterns at serines

Question 2

What does mRNA processing/splicing result in

Answer 2

5’cap, recruitment of splicing factors, and poly(A) tail
and mRNA degradation

Question 3

Post-transcription includes

Answer 3

RNA processing, nuclear export, RNA splicing/ alternative splicing

Question 4

splicing proteins bind and form what

Answer 4

lariat

Question 5

what do lariats do

Answer 5

encourages two exons to join together, with the assistance of exon-junction proteins

Question 6

introns are

Answer 6

removed

Question 7

exons are

Answer 7

joined together

Question 8

exon-junction proteins do what

Answer 8

join exons together at lariats
transport edited RNA out of nucleus

Question 9

Translational control is over what

Answer 9

translational control over mRNA

Question 10

example of translational control

Answer 10

iron and RNA binding proteins

Question 11

iron stimulates

Answer 11

formation of ferretin which stores iron

Question 12

iron inhibits or represses

Answer 12

formation of transferrin receptors which brings iron into cell