GENETIC REGULATION PROKARYOTES QUIZ

tubulin

tachykinins

leucine zippers

DNA methylation

Steroid hormones

Zinc finger proteins

Helix-turn-helix proteins

Leucine zipper proteins

P

none of these

O

I

binding to DNA promoter region

binding to a transcription factor

binding to RNA polymerase

binding to DNA enhancer region

cAMP increases

lac Z gene expression is increased

None of these

Binding of CAP-cAMP complex to the promoter area decreases

transcription factor IID

transcription factor IIA

transcription factor IIB

all of these

splicing of the tubulin transcript

binding of tubulin to the tubulin translational product

binding of tubulin to tubulin mRNA

binding of tubulin to DNA

3

1

2

4

they initiate transcription

they are restricted to a specific gene

their orientation can be inverted without effect

they are adjacent to the start codon

positive

negative

may be positive or negative

none of these