Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

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

bio: DNA replication

key enzymes/proteins

helicase unwinds parental double helix, unzips down center (starts at sections with A-T's because they have fewer bonds and are broken more easily
binding proteins stabilize separated strands, prevents DNA from rezipping (not an enzyme)
primase adds short RNA primer strand to template/parental strand
DNA polymerase adds DNA nucleotides to build polymer
exonuclease removes RNA primer and inserts correct DNA nucleotides
ligase joins Okazaki fragments and seals nicks in sugar-phosphate backbone
quirks of DNA polymerase: can only add nucleotides of 3-prime end of growing strand), can only add FIRST to RNA
Created by: spanish3h