answersLogoWhite

0

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

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Biology

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

Yes, both intron and exon regions are transcribed into the primary transcript during transcription. However, only the exons are retained in the processed mRNA after introns are removed through the process of splicing.


What are introns and extrons and how are they different?

Introns are non-coding sequences within a gene that are transcribed but are later removed during RNA processing. Exons are the coding regions of a gene that are spliced together after introns are removed to form the mature mRNA transcript. This process is known as RNA splicing and is essential for producing functional proteins from genes.


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.


After the primary transcript mRNA has been formed what mediates the cutting of introns?

The process of removing introns from the pre-mRNA is mediated by a large complex called the spliceosome. The spliceosome recognizes the intron-exon boundaries and catalyzes the splicing reaction to remove the introns and join the exons together. This results in the formation of mature mRNA ready for translation.

Related Questions

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


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

Yes, both intron and exon regions are transcribed into the primary transcript during transcription. However, only the exons are retained in the processed mRNA after introns are removed through the process of splicing.


What are intron-exon borders?

Intron-exon borders are the junctions between introns (non-coding regions) and exons (coding regions) within a gene. These borders are important for the process of splicing during gene expression, where introns are removed and exons are joined together to form a mature mRNA transcript. The specific sequences at these borders help determine where splicing occurs.


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.


What is meant by primer needs to span exon-exon junction?

so that the primers for target mrna you are tyring to amplify for q-pcr/pcr does not also amplify genomic dna which might be contamination from your purification, because the gDNA will not be amplified due to the intronic sequence (primer wont bind) and will only bind the exonic mrna sequence


What are introns and extrons and how are they different?

Introns are non-coding sequences within a gene that are transcribed but are later removed during RNA processing. Exons are the coding regions of a gene that are spliced together after introns are removed to form the mature mRNA transcript. This process is known as RNA splicing and is essential for producing functional proteins from genes.


What is the birth name of Jim Exon?

Jim Exon's birth name is John James Exon.


Is an exon part of an intron?

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.


What terms is least closely related to the terms intron tRNA polypeptide and anticodon?

intron


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.


What is J. James Exon's birthday?

J. James Exon was born on August 9, 1921.


When was J. James Exon born?

J. James Exon was born on August 9, 1921.