Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.

Remove ads
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

Chapter 8 Vocab

Biology 1/DNA

QuestionAnswer
What is a nucleotide? A small unit, or monomer, that makes up DNA.
What is a double helix? A model in which two strands of DNA wind around each other like a twisted ladder.
What are the base pairing rules? The bases of the two DNA strands always pair up in the same way.
What is replication? The process by which DNA is copied during the cell cycle.
What are DNA polymerases? Groups of enzymes that bond the new nucleotides together.
What is a central dogma? Where information flows in one direction, from DNA to RNA to proteins.
What is RNA? Ribonucleic acid or a chain of nucleotides, each made of a sugar, a phosphate group, and a nitrogen-containing base.
What is transcription? The process of copying a sequence of DNA to produce a complementary strand of RNA.
What are RNA polymerases? Enzymes that bonds nucleotides together in a chain to make a new RNA molecule.
What is Messenger RNA (mRNA)? An intermediate message that is translated to from a protein.
What is Ribosomal RNA (rRNA)? A form part of ribosomes, a cell's protein factories.
What is Transfer RNA (tRNA)? RNA that brings amino acids from the cytoplasm to a ribosome to help make the growing protein.
What is translation? The process that converts, or translates, an mRNA message into a polypeptide.
What is a codon? A three-nucleotide sequence that codes for an amino acid.
What is a stop codon? A signal at the end of the amino chain.
What is a start codon? A signal at the start of translation and the amino acid methionine.
What is an anticodon? A set of three nucleotides that is complementary to an mRNA codon.
Created by: reamlauren1566