Prokaryotic Gene Regulation
0.0(0)
Studied by 0 people
View linked note
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/9
There's no tags or description
Looks like no tags are added yet.
Last updated 1:22 AM on 3/13/25
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
10 Terms
1
New cards
Operon
A DNA region containing genes that encode proteins for a specific function, a promoter, and an operator.
2
New cards
Promoter
A DNA sequence where RNA polymerase binds to initiate transcription.
3
New cards
Operator
A segment of DNA where regulatory proteins bind to control transcription.
4
New cards
Lac Operon
A genetic switch in E. coli that controls the metabolism of lactose.
5
New cards
What is the function of the operator in an operon?
The operator controls transcription by binding regulatory proteins.
6
New cards
Why is regulating gene expression beneficial for prokaryotes?
It conserves energy and resources by producing proteins only when needed.
7
New cards
What occurs in the lac operon when lactose is absent?
A repressor protein binds to the operator, blocking RNA polymerase and preventing transcription.
8
New cards
What occurs in the lac operon when lactose is present?
The repressor does not bind, allowing RNA polymerase to transcribe the genes for lactose digestion.
9
New cards
Prokaryotic transcription regulation
Simpler than in eukaryotes and primarily involves operons.
10
New cards
Energy conservation in gene expression
Gene expression is controlled to conserve energy and resources.
