Unit 4 Gene expression prokaryots

Question 1

Gene regulation:

1. transcription mechanism:
2. translation mecahnism:
3. post translation mechagnism:

Answer 1

controls levels of gene expression

1. transcription mechanism: control synthesis of mRNA
2. translation mecahnism:
3. post translation mechagnism:

Question 2

Operons

Answer 2

ONLY IN PROKARYOTS
genes in operons

1. structure: code proteins needed for operations
2. regulator: code proteins that regulate other genes

Question 3

Lac operon vs trp operon

Answer 3

lac operon:
-regulates lactose metabolism
-negative feedback controll
-inducible operon

trp operon:
-regulates tryptophan production
-negative feedback controll
-repressible operon