The Genetic Code

Question 1

Gamow

Answer 1

discovered that codons consisted of three bases

Question 2

Nirenberg & Matthael

Answer 2

took a string a uracils to see what they coded for

confirmed that codons consist of three nucleotides

Question 3

Start Codon

Answer 3

AUG

methionine

Question 4

Stop Codons

Answer 4

UAA
UAG
UGA

Question 5

Open Reading Frame

Answer 5

entire continuous sequence of a gene that begins at a triplet start codon and ends at a triplet stop codon

Question 6

Reading Frames

Answer 6

reflects the way a nucleotide sequence can be read

-can be read on the first second or third nucleotide

Question 7

Frameshift Mutations

Answer 7

-nucleotides are added or removed from the sequence