Vocabulary
The Lac Operon
Eukaryotic Gene Regulation
Promoters
Operator
100
Group of genes that are being regulated together.
What is operon?
100
Compound made up of two simpe sugars, galactose and glucose.
What is lactose?
100
What does the TATA box do?
What is a protein that helps position RNA polymerase by marking a point just before the beginning of a gene?
100
Promoter
What is the P site
100
Operator
What is the O site?
200
1st Site; RNA-Polymerase bind to begin transcription.
What is Promoter?
200
Lac repressor protein has binding site for...
What is lactose?
200
How are genes regulated in eukaryotic cells?
What is by binding DNA sequences in the regulatory regions of eukaryotic genes transcription factors contol the expression of those genes?
200
Where can the RNA-polymerase bind to begin transcription?
What is the P site?
200
Where can a lac repressor bind to DNA?
What is the O site?
300
2nd; DNA-binding proteins known as the lac repressor can bind to DNA.
What is Operator?
300
What can't reach the lac genes to begin transcription?
What is O region?
300
Most critical level of transcription.
What is DNA-binding proteins known as transcription factors?
300
What turns on the operon?
What is lactose?
300
Operator
What is the 2nd site?
400
How are prokaryotic genes regulated?
What is DNA binding proteins?
400
What turns off lac genes?
What is proteins that bind to DNA and block transcription?
400
Multiple binding sites for transcription factors.
What is influenced transcription?
400
Changes shape of repressor protein?
What is lac repressor?
400
Lac repressor
What is a DNA binding protein?
500
Three lactose genes in E. coli.
What is lac operon?
500
Transporting lactose across the cell membrane and then breaking the bond between glucose and galactose.
What is lactose for food?
500
Act as transscription factors that bind to DNA.
What is receptor complexes?
500
What is the 1st site?
What is Promoters
500
How does the lac repressor turn on?
What is the presence of lactose?
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