Ch. 12 Molecular Gene Expression

What is the process called in which DNA is used as a template to synthesize RNA?

• Translation

• Transcription

• Replication

• Transformation

Which enzyme is primarily responsible for synthesizing mRNA from a DNA template in eukaryotes?

• DNA polymerase

• RNA polymerase II

• Ligase

• Helicase

What is the name of the three-nucleotide sequence on mRNA that codes for a specific amino acid?

• Anticodon

• Codon

• Exon

• Intron

Which of the following is NOT a component of the transcription process in eukaryotes?

• Promoter

• Terminator

• Ribosome

• RNA polymerase

During translation, which molecule brings amino acids to the ribosome?

• mRNA

• tRNA

• rRNA

• DNA

Which region of a gene is transcribed but not translated into protein?

• Exon

• Intron

• Promoter

• Operator

What is the function of the promoter region in a gene?

• It signals where transcription should begin

• It codes for proteins

• It terminates translation

• It splices out introns

Which of the following best describes the central dogma of molecular biology?

Which of the following is a post-transcriptional modification in eukaryotic mRNA?

• Addition of a 5' cap

• DNA methylation

• DNA replication

• Protein folding

If a DNA template strand has the sequence 3'-TACGGT-5', what will be the sequence of the mRNA produced?

• 5'-AUGCCA-3'

• 5'-ATGCCA-3'

• 5'-TACGGT-3'

• 5'-UACGGU-3'