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After transcription, the mRNA is processed by the spliceosome, which splices out the introns (because introns are not part of the coding sequences for protein), and "stitches" the exons together to form the final transcript that is sent to the ribosome for translation.

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Are exons or introns removed during the process of splicing?

Exons are the parts of a gene that are kept and expressed, while introns are the parts that are removed during the process of splicing.


Are introns or exons removed during the process of mRNA splicing?

Exons are the parts of the mRNA that are kept and introns are the parts that are removed during the process of mRNA splicing.


Non coding portions of DNA that are separated from the portions of DNA actually used during transcription are called?

Introns are the non-coding portions of DNA that are separated from the portions of DNA used during transcription. After transcription, introns are removed during the process of mRNA maturation, leaving only the exons to be translated into proteins.


Are Exons Cut After Transcription In Eukaryotes?

No. The Ex in Exon refers to Expression.Introns are nucleotide sequences within genes that are removed by RNA splicing to generate the final mature RNA product of a gene.


Are exons or introns spliced out during the process of RNA splicing?

During the process of RNA splicing, introns are spliced out, while exons are joined together to form the mature mRNA molecule.


Spliced together during mrna processing?

Exons, after the introns have been cleaved.


Are intron transcribed into the primary transcript?

No. The introns must be cut out of RNA before transcription. This is because a ribosome cannot read introns, and can only read axons. They are cut out and the axons are attached together to go through ribosome.


What are the sense portions of a pre-mRNA strand made in transcription called?

The sense portions of a pre-mRNA strand made in transcription are called exons. Exons contain the coding sequences that will be eventually translated into proteins. Non-coding sequences within the pre-mRNA, called introns, are removed during RNA processing to produce the mature mRNA molecule.


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.


What is the primary transcript of eukaryotic genes?

the primary transcript usually has a exons and introns which need to undergo splicing to remove the introns and re-splicing to join the exons ..after this process the resulting mRNA is a mature mRNA.


In eukaryotes only exons are translated?

Correct. The mRNA transcibed from the DNA in the nucleus has both exons and introns; the introns are taken out and the exons are left in. The mended exons exit the nucleus and the introns stay in the nucleus. Only the exons are translated at the ribosomes. (In Eukaryotic cells only)


Do introns and exons play any role in protein synthesis?

Exons are part of both prokaryotic and eukaryotic. Introns are rarely present in the domain bacteria (common bacteria) while introns are present in some genes in domain archaea ("ancient" bacteria). Both are considered prokaryotic. No, they are only present on tRNA and rRNA.