Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Gene Expression

Biol 104 Ch. 15: Control of Gene Expression

Operon a cluster of genes under the control of a single promoter in prokaryotes
Operator a DNA segment where a repressor protein binds to block transcription
Repressor a protein that inhibits gene transcription by binding to the operator
Inducer a molecule that inactivates a repressor to allow transcription to occur
Lac Operon a set of genes in bacteria that regulate lactose metabolism and are only expressed when lactose is present
Trp Operon a set of genes in bacteria that regulate tryptophan synthesis and are turned off when tryptophan is present
Positive Regulation (Enhancers) gene control where a regulatory molecule or protein increases transcription
Negative Regulation(Silencers) gene control where a regulatory molecule or protein decreases transcription
Transcription Factors proteins that bind to DNA to help regulate the transcription of genes
Alternative RNA Splicing the process of creating different mRNAs from the same gene by including or excluding certain exons
Histone Acetylation the addition of acetyl groups to histone proteins that loosens chromatin and increases transcription
DNA Methylation the addition of methyl groups to DNA that typically silences gene expression
Created by: PRO Teacher etucci
Popular Biology sets

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards