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

DNA and Chromosomes

DNA and Chromosomes in eukaryotic and prokaryotic cells

TermDefinition
Define gene A section of DNA that contains a code for making a polypeptide and functional RNA. The code is a specific sequence of bases. Polypeptides make proteins and so genes determine the protein of a organism.
The location of a particular gene on a chromosome is called the locus
Define an Allele An Allele is one of a number of alternative forms of a gene. Most occur in two occasionally more different forms.
How is DNA stored and where in a eukaryotic cell In a eukaryotic cell nucleus DNA is stored as chromosomes Humans have 23 Pairs of chromosomes 46 in total
Define homologous chromosomes Pairs of matching chromosomes are called homologous pairs A homologous pair of chromosomes are exactly the same size have exactly the same genes but might have different alleles
Where is DNA stored in a eukaryote DNA is stored in as chromosomes inside of the nucleus. Chromosomes in eukaryotic cells are linear in shape. To tightly coil the DNA to fit in the nucleus as chromosomes the DNA is associated to proteins called histones
Once its wrapped around a histone what is it called A nucleosome
what does DNA do in prokaryotic cell A prokaryotes also carry DNA in chromosomes BUT the DNA molecules are shorter and circular. The DNA is NOT wound around histones. Instead it supercoils to fit in the cell
Where else can DNA be found in It can be in chloroplasts and mitochondria This DNA is similar to prokaryotic DNA in that it is short and circular
Created by: yHya
 

 



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