Definition

1. Noun:
   • The enzyme that copies DNA into RNA: RNA polymerase is a biological catalyst responsible for synthesizing RNA molecules from a DNA template during the process of transcription.

Usage Examples

• Noun:
  • RNA polymerase binds to a specific region of DNA called the promoter to initiate transcription.
  • The function of RNA polymerase is essential for gene expression.
  • Scientists studied how the antibiotic inhibited bacterial RNA polymerase.

Advanced Usage

• "RNA polymerase II": A specific type of RNA polymerase in eukaryotes responsible for transcribing messenger RNA (mRNA).
  • RNA polymerase II is the enzyme that transcribes protein-coding genes.
• "RNA polymerase activity": Refers to the functional capability of the enzyme to catalyze RNA synthesis.
  • The experiment measured the RNA polymerase activity in the cell extract.

Variants and Related Words

• Polymerase (n): A general term for any enzyme that synthesizes polymers of nucleic acids.
  • DNA polymerase is another crucial enzyme for replication.
• Transcriptase (n): Another name for an RNA polymerase, emphasizing its role in transcription.
  • Reverse transcriptase is a related enzyme that copies RNA into DNA.

Synonyms

• Transcriptase: An enzyme that catalyzes the formation of RNA from a DNA template.

Related Phrases

• "Polymerase chain reaction (PCR)": A laboratory technique for amplifying DNA, which uses a polymerase, not RNA polymerase. (This is a related but distinct compound term).
• "Transcription machinery": The complex of proteins, including RNA polymerase, involved in transcription.

Noun

1. the enzyme that copies DNA into RNA