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Why are introns copied and then removed from the RNA sequence?

Introns were copied and then removed from the RNA sequence because they were placeholders.


Do mitochondria have introns?

Yes, mitochondria have introns. These introns are non-coding sequences found within the DNA of the mitochondria. They are typically removed during the process of RNA splicing to produce functional mitochondrial mRNA.


Why do the introns have to br removed?

Introns are the non-coding parts of the gene. If you didn't remove introns, the wrong protein may be produced because they allow more than one protein to be produced from a single gene.


What is the small pieces of DNA that are edited out of the mRNA message before it is expressed?

The small pieces of DNA that are edited out of the mRNA message before it is expressed are called "introns." During the process of mRNA processing, introns are removed and the remaining segments, called "exons," are spliced together to form the mature mRNA molecule that will be translated into a protein.


Mutations in introns are less likely to affect phenotype then mutation in exons?

Mutations in introns are less likely to affect phenotype because introns are not translated into protein, unlike exons which contain coding regions for proteins. Introns are involved in regulation of gene expression through processes such as alternative splicing, but mutations within introns typically have a more subtle impact on gene expression compared to mutations in coding regions (exons).