What is a Cistron?

What is an Exon?

Exon is defined as a particular region of a gene that consists of the coding sequence for an RNA molecule. The genes which consist of both introns and exons are found in eukaryotic cells. Exons are separated by non-coding regions which are known as introns. They are the specific portions of the gene that are transcribed into mRNA and they are processed into functional RNA molecules....

What is a Cistron?

Cistron refers to the region of DNA which consists of the information necessary to produce a single polypeptide chain. It is a gene that includes all coding and non-coding sequences. It was first introduced by geneticist Seymour. They are the combined form of polycistronic. It consists of a DNA segment that codes for a polypeptide during protein synthesis....

Difference Between Exon and Cistron

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Conclusion

Therefore, exons and cistrons are both crucial elements involved in gene expression and protein synthesis. Exons represent the coding sequences within genes and joined together to form mature mRNA molecules. On the other hand, cistrons are functional units of DNA that encode specific proteins. They encompass both the coding sequences (exons) and regulatory elements required for gene expression. While exons are specific segments within genes, cistrons represent complete genetic units responsible for the synthesis of proteins. Understanding the distinction between these two terms is essential for comprehending the intricate processes that occur within our genes and how they contribute to the diversity of proteins in living organisms....

FAQs on Exon and Cistron

Q1. Define Exon....