8.1 Genes and the genetic code

Question 1

Define gene

Answer 1

section of DNA on a chromosome coding for one or more polypeptides

Question 2

How many different amino acids occur in proteins?

Answer 2

20

Question 3

name the 4 different bases

Answer 3

adenine
thymine
guanine
cytosine

Question 4

Define degenerate

Answer 4

amino acids can be coded for by more than one triplet (codon)

Question 5

Define non-overlapping

Answer 5

Each base in a sequence (codon) is read only once

Question 6

Define universal

Answer 6

each triplet codes for the same amino acids in all organisms