What does a bacterial RNA polymerase produce when it transcribes a protein-coding gene?a. rRNAb. tRNAc. mRNAd. snRNA

Verified step by step guidance

1. Identify the role of RNA polymerase in transcription.
2. Understand that transcription is the process of copying a segment of DNA into RNA.
3. Recognize that protein-coding genes are transcribed into messenger RNA (mRNA).
4. Recall that mRNA serves as the template for protein synthesis during translation.
5. Conclude that bacterial RNA polymerase produces mRNA when it transcribes a protein-coding gene.

Key Concepts

Transcription

Transcription is the process by which RNA polymerase synthesizes RNA from a DNA template. During this process, the enzyme unwinds the DNA and assembles a complementary strand of RNA, which is crucial for gene expression. This step is essential for producing various types of RNA, including mRNA, which carries the genetic information needed for protein synthesis.

mRNA (messenger RNA)

mRNA, or messenger RNA, is a type of RNA that conveys genetic information from DNA to the ribosome, where proteins are synthesized. It is produced during transcription of protein-coding genes and serves as a template for translation, guiding the assembly of amino acids into proteins. mRNA is vital for the expression of genes and the functioning of cells.

Types of RNA

There are several types of RNA, each serving distinct roles in the cell. The main types include rRNA (ribosomal RNA), which forms the core of ribosome structure; tRNA (transfer RNA), which transports amino acids to the ribosome during protein synthesis; and mRNA, which carries the genetic code. Understanding these types is essential for grasping how genetic information is expressed and utilized in biological systems.