Gene Expression Quiz

Who proposed the one gene-one enzyme hypothesis?

• Archibald Garrod

• Beadle and Ephrussi

• Francis Crick

• Beadle and Tatum

Which of the following is NOT a role of RNA polymerase II?

• Creates mRNA

• Binds with promotor

• Adds primer to DNA

• Opens DNA helix

What is the start codon in mRNA?

• UAG

• UAA

• UGA

• AUG

Which of the following is true about the central dogma of biology?

• DNA is directly converted into protein

• Transcription and translation occur simultaneously

• Proteins are the template for RNA synthesis

• mRNA is the template for DNA synthesis

What is the function of transcription factors?

• Create mRNA

• Add primer to DNA

• Bind with promotor

• Open DNA helix

Which of the following is true about prokaryotic transcription?

• Termination occurs when RNA polymerase collides with Rho protein

• Requires transcription factors

• mRNA undergoes post-transcriptional modifications

• Only RNA Polymerase II is involved

What is the role of the TATA box in transcription?

• Binding site for RNA polymerase

• Stop codon for translation

• Start codon for translation

• Promotor region for transcription

What is the reading frame for codons?

• 3' to 5'

• Both 5' to 3' and 3' to 5'

• 5' to 3'

• None of the above

Which of the following is NOT a nucleotide in RNA?

• Adenine

• Uracil

• Guanine

• Thymine

What is the primary transcript in eukaryotes called?

• tRNA

• pre-mRNA

• mRNA

• rRNA