M7 L26

Question 1

RNA world argument

Answer 1

RNA fulfills all biochemical functions of life
- information storage and replication
- enzymatic activity

Question 2

RNA sponges

Answer 2

CsrB RNA
- sponge for CsrA protein

Question 3

RNA thermosensor

Answer 3

PrfA
- major virulence regulon in Listeria

Question 4

RNA conservation

Answer 4

usually through neg selection
- structure
- interactions with other molecules