Question
Download Solution PDFA single messenger RNA is formed for all the structural genes of an operon. This RNA is called
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- A single messenger RNA (mRNA) is formed for all the structural genes of an operon. This mRNA is termed polycistronic RNA.
- In prokaryotes, operons are clusters of genes transcribed together, resulting in a single mRNA molecule that encodes multiple proteins. This type of mRNA is called polycistronic because it contains multiple coding sequences (cistrons).
- Each coding sequence within a polycistronic mRNA corresponds to a different protein, allowing for coordinated expression of genes that function together in a pathway or process.
- Regulatory RNAs are involved in the regulation of gene expression but do not encode proteins. Examples include microRNAs (miRNAs) and small interfering RNAs (siRNAs).
- Transfer RNA (tRNA) is responsible for bringing amino acids to the ribosome during protein synthesis. It does not serve as a template for protein coding.
- The term "uncommon RNA" is not a standard term in molecular biology and does not refer to any specific type of RNA involved in gene expression or regulation
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