Protein

Question 1

Codons read in what direction?

Answer 1

5’–>3’

Question 2

What is the start codon? Codes for

Answer 2

AUG. Methionine.

Question 3

What is an open reading frame?

Answer 3

Area between start and stop codon.

Question 4

What does it mean that the genetic code is degenerate?

Answer 4

An amino acid can be specified by more than one codon.

Question 5

What is silent mutation? Missense? Nonense?

Answer 5

Silent: no result in amino acid change.
Missense=change in amino acid.
nonsense=codon changes to stop codon.

Question 6

Slice site mutation? Frame-shift?

Answer 6

Splice: alter the way introns are removed producing aberrant proteins.
Frame=nucleotide insertion or deletion throws the reading frame off.

Question 7

What are the steps of protein synthesis?

Answer 7

Activation of amino acids
Initiation
Elongation
Termination

Question 8

What activates the amino acids?

Answer 8

Aminoacyl-tRNA synthetase.

Question 9

Ribosome is made up of what?

Answer 9

Protein, tRNA, small and large subunits.

Question 10

What are the 3 ribosome binding sites?

Answer 10

1. A= amino acid docking site
2. P= Peptide bonding site
3. E= exit site