AL Transcription factors

What type of molecule are transcription factors?

• carbohydrates

• lipids

• proteins

• nucleic acids

Which of these may alter whether a gene is switched on or not? (select as many as you think)

• time of day

• which organ the cell is in

• what type of cell it is

• how many cells there are

If there is no transcription of a gene, no ....................... will be made

Where does a transcription factor bind?

• to a DNA target sequence

• to a specific enzyme

• to the promoter sequence

• to a specific lipid

Activators make is easier for RNA polymerase to bind to the ............................ sequence of a gene.

Which option best describes transcription factors?

• active in the cytoplasm

• inactive in the nucleus

• inactive in the cytoplasm

• active in the membrane

Once a transcription factor is activated, what happens to it?

• the active site opens up

• its shape changes

• it splits into two pieces

When transcription factors are activated, where do they go?

• to the cytoplasm

• to the membrane

• to the RER

• to the nucleus

An activated transcription factor can bind to .......... sequences