IB Protein synthesis AHL

Identify the enzyme that catalyses transcription

• DNA polymerase I

• RNA polymerase

• tRNA activating enzyme

• DNA gyrase

To which region on DNA does RNA polymerase bind?

• Promoter

• Start codon

• Exons

• Terminator

The promoter is a non-coding sequence of bases on the DNA

• TRUE

• FALSE

State the term for the non-coding sequences on mRNA that are removed during post trasncription modification

How many bases on mRNA code for one amino acid?

• 1

• 2

• 3

• 4

State the term for a sequence of bases on DNA or mRNA that codes for one amino acid

Identify the molecule

An amino acid is attached to the 5' end of tRNA (in a reaction catalysed by tRNA activating enzyme)

• TRUE

• FALSE

State the term for the bonds that form between amino acids in translation

Identify the bases of the start codon

• CAG

• TAT

• AUG

• GUG