IB Trancription core

Identify the enzyme that catalyses transcription

• DNA polymerase

• Helicase

• RNA polymerase

• Taq polymerase

Where does transcription occur in a eukaryote cell?

• Nucleus

• Mitochondrion

• Rough endoplasmic reticulum

• 80S ribosome

State the molecule formed in transcription

Identify the strand of DNA transcribed

• Sense strand

• Lagging strand

• Template strand

• Anti sense strand

Which base replaces thymine in RNA?

State the sequence of bases on mRNA complementary to ATCGGCTTA

What term describes the sequence of bases on DNA that codes for a polypeptide (protein)?

Which of the following applies to mRNA?

i. It is double stranded

ii. It contains ribose

iii. It contains thymine

• i only

• i and ii

• ii only

• I, ii and iii

How many bases on mRNA code for one amino acids?

• 2

• 3

• 4

• 64

Some codons do not code for amino acids

• True

• False