Save
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

Exam 4 P2

Biology - final - exam 4 questions but the second part

QuestionAnswer
What is not a feature of the genetic code? There are four bases to a single codon
The expressed (coding) regions of eukaryotic genes are called ____. exons
How many different amino acids are common to all living organisms? 20
Which of the following molecules contain anticodons? tRNA
What are each of the ribosome subunits (the large and small subunits) composed of? both rRNA and protein
You are studying a protein that is 300 amino acids long. How long would you expect the coding sequence of a processed mRNA's coding sequence to be in nucleotides? 900
Aminoacyl tRNA synthases are enzymes that add the correct amino acid to specific tRNAs
What is the function of a signal peptide? to move ribosomes that are synthesizing proteins to be secreted from the cytoplasm to the rough ER
What type of bond joins the amino acids together in a polypeptide? peptide
Polysomes allow cells to: make copies of proteins more rapidly
Consider the sequence of events during translation by a ribosome. Once a peptide bond has been formed between the amino acid attached to the tRNA in the P site & the amino acid associated with the tRNA in the A site, what process occurs immediately next? translocation
During translation, chain elongation continues until what happens? Stop codons enter the A site and are recognized by release factors
The order of amino acids in a polypeptide chain at the end of translation describes what level of protein structure? primary
The first amino acid incorporated into proteins is almost always: methionine
Which component is NOT involved in the process known as translation? snRNA
During transcription and DNA replication, _____ bonds form between the nucleotides being joined together to make a new nucleic acid strand phosphodiester
which type of point mutation will have the LEAST effect on the polypeptide chain encoded by the gene containing the mutation? silent
What is the effect of a nonsense mutation in a gene? It introduces a premature stop codon into the mRNA
After the initiation of DNA replication, the prokaryotic chromosome is replicated in a bidirectional fashion. True or false? True
What is the modern definition of a gene? A segment of DNA that is used for the function of production
Created by: josie_d
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