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

ch 9 vocab

vocab

QuestionAnswer
a substance prepared fron killed or weakend pathogens and introduce into a body to produce immunity vaccine
describes a micro-organism or virus that causes disease and that is highly infectious virulent
the transfer of genetic material in the form of dna fragments from one cell to another or from one organism to another transformation
a virus that infects bacteria bacteriophage
the spiral- staircase structure characterstic of the DNA molecule double helix
in a nucleic- acid chain a subunit that consists of a sugar, a phosphate, and a nitrogenous base nucleotide
a five- carbon sugar that is a component of DNA nucleotides deoxyribose
The rules stating that cytosine pairs with guanine and adenin pairs with thymine in DNA and that adenine pairs with uracil in RNA base- pairing rules
a characteristic of nucleic acids im which the sequence of bases on one strand is paired to the sequence of bases on the other complementary base pair
the process of making a copy of DNA DNA replication
an enzyme that unwinds the DNA double helix during DNA molecule DNA helicase
a y shaped point that results when two strands of a dna double helix separates so that the dna molecule can be replicated replication fork
an enzymes that catalyzes the formation of dna replication DNA polymerase
Created by: lio
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