13U8L2 Gene Expression in Eukaryotes

Proteins called [?] control gene expression in eukaryotes

A transcription factor binds to the [?] of a gene

Some transcription factors decrease the rate of transcription of a gene.

• True

• False

In plants, germination occurs in response to a hormone called...

• Gibberellin

• PIF

• DELLA

• RNA polymerase

What is the mechanism that enables the amylase gene to be transcribed?

• PIF binds to the operator

• DELLA binds to the operator

• PIF binds to the promoter

• DELLA binds to the promoter

What prevents PIF from binding to the promoter of the amylase gene?

• DELLA is bound to PIF

• Gibberellin is bound to PIF

• An enzyme is bound to PIF

• RNA polymerase is bound to PIF

How does the presence of gibberellin allow transcription of the amylase gene?

• Gibberellin causes the breakdown of DELLA

• Gibberellin causes the breakdown of PIF

• Gibberellin binds to PIF

• Gibberellin binds to DELLA

What effect does the presence of gibberellin have on the expression of the amylase gene in plant seeds?

• Increases expression

• Decreases expression

How does gibberellin cause the breakdown of DELLA?

• Gibberellin binds to a receptor on an enzyme

• Gibberellin binds to DELLA

• Gibberellin binds to PIF

• Gibberellin binds to an enzyme

What is DELLA?

• A repressor protein

• An enzyme

• A transcription factor

• A promoter