Gene Expression at the Molecular Level

How many nucleotides are contained in a single codon?

• 1

• 3

• 4

• 6

The process that produces mRNA from DNA is called

• Transcription

• Translation

• Replication

• Processing

The processes of transcription and translation are collectively known as

• RNA processing

• gene replication

• gene expression

• DNA synthesis

The transcription process in a eukaryotic gene directly produces _________.

• tRNA

• mRNA

• DNA

• pre-mRNA

The termination of translation occurs when a release factor recognizes the stop codon.

• TRUE

• FALSE

More than one codon can specify the same amino acid.

• TRUE

• FALSE

Translation is a relatively slow process.

• TRUE

• FALSE

All enzymes are proteins.

• TRUE

• FALSE

The molecule mRNA, which contains the information to make a polypeptide,isconstructed from a DNA template.

• TRUE

• FALSE

RNA polymerase II of eukaryotes always requires more than one general transcriptionfactor to initiate transcription

• TRUE

• FALSE