Campbell Biology, Chapter 18 Flashcards
1
Q
In bacteria, genes are clustered into what
A
Operons
2
Q
What is tryptophan
A
an essential amino acid that plays a key role in protein synthesis and is a precursor to several important molecules
3
Q
What is a represser
A
regulatory protein that can bind to a specific DNA sequence
4
Q
What is a corepresser
A
small molecule that works in conjunction with a repressor to enhance the repressor’s ability to bind to the operator and inhibit gene transcription
5
Q
When is gene regulation a positive process
A
regulatory protein directly interacts with the genome to enhance transcription
6
Q
When is gene regulation a negative process
A
Use of repressers
