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Is an exon part of an intron?

Updated: 11/1/2022
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13y ago

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No. Those are two different parts of pre-mRNA before the transcription is finished. The intron is the non coded region, and is therefore spliced out of the mRNA.

The coding portions of eukaryotic genes are split in to two types of DNA, introns and exons. Only the exons code for the protein itself. The introns often contain control regions and are 'spliced out' in a process known as post-transcriptional modification.

It's actually a little more complicated than that in practice, as some genes have exons which they sometimes include in the mRNA that goes for transcription and at other times they won't include those exons, they'll splice them out in the same way as they would an intron. An example of this would be the cartilage structural protein collagen II.

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Q: Is an exon part of an intron?
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Related questions

What are intron-exon borders?

They are extremely well defined boundaries.


Are both intron and exon regions are transcribed into the primary transcript?

yes


Where do gene mutations occur?

on a gene it can occur on the promoter, intron-exon borders, poly-A-tail cleavage sites and on the exon


What determined which proteins a cell make?

The answer is "DNA". It depends on the parts of the DNA that are activated and what part of the RNA-model is an intron or an exon. Only the exons get copied as RNA goes to the ribosomes, where proteins are made.


Are promoter a part of an intron?

No


Why do eukaryotes have introns in DNA?

As you might know, introns DNA is something you can called 'Junk Fragments'. It didn't contain any information. So its function as a protection to the coding fragment (exon...maybe i misspell it ). DNA is subjected to many kind of mutation caused by chemical compounds or physical cause (gamma rays, for example). With Intron, when there's a mutation, there's a high probability that the one which subjected to the mutation is intron not exon. This way, eukaryote cells might survive from genetic mutation. Human has a large number of intron in one gene. It cause human to survive from many kind of mutation.


This portion of a DNA segment does not code for a protein?

These are known as introns. There are more than one type. You can always tell an intron from an exon by the fact that exons are the [reassembled] genes that are, after the introns are excised, expressed.


What are introns and extrons and how are they different?

Exon DNA encodes for the RNA included in the final mRNA transcript that encodes for proteins. Intron DNA is found within exons, but is spliced out as the mRNA molecule is processed.


What is the difference between an intron and exon?

Exons code for amino acids (they are usable codons) Introns code for nothing.


What is the definition of the word intron?

The definition of the 'intron' is part of the DNA sequence within a gene. It is the sequence within a particular gene that is removed during the RNA splicing process.


What is the birth name of Jim Exon?

Jim Exon's birth name is John James Exon.


In a eukaryote what is a segment of a gene that codes for a protein?

An exon is the section of a gene that codes for a protein or part of a protein, different exons can be spliced together to form different genes in eukaryotes