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Exons code for amino acids (they are usable codons) Introns code for nothing.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThe exon - the 'coding' DNA sequence - is 'determined' by the Dna that is Expressed.
The introns - noncoding DNA sequences - are returned for recycling.
Wiki User
∙ 8y agoExons are those DNA bases which are translated in to mRNA. Introns are those DNA bases that are found in between exons.
Wiki User
∙ 8y agothe both good
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Are both intron and exon regions are transcribed into the primary transcript?
yes
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.
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 the intervening sequence of RNA molecules that are cut out before the messenger RNA leaves the nucleus?
Introns are cut out and then the exons are spliced together.
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 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.
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 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 are the introns and exons?
An intron is a DNA region within a gene that is not translated into protein. After intron splicing (ie. removal), the mRNA consists only of exon derived sequences, which are translated into a protein.
What is the birth name of Jim Exon?
Jim Exon's birth name is John James Exon.
What terms is least closely related to the others intron tRNA polypeptide and anticodon?
intron
What terms is least closely related to the terms intron tRNA polypeptide and anticodon?
intron
Are promoter a part of an intron?
No
