A key point here is that it's only the exons of a gene that encode a protein. Not only do the introns not carry information to build a protein, they actually have to be removed in order for the mRNA to …

In eukaryotic cells, DNA to mRNA transcription occurs within the nucleus, producing pre-mRNA. This pre-mRNA undergoes processing, including the addition of a 5' cap, a poly-A tail, and splicing out …

Eukaryotic pre-mRNAs must have their ends modified, by addition of a 5' cap (at the beginning) and 3' poly-A tail (at the end). Many eukaryotic pre-mRNAs undergo splicing. In this process, parts of the …

A spliceosome locates introns, cuts them out, and then fuses the remaining parts of the mRNA transcript back together. The parts of the mRNA transcript that aren’t spliced out by the spliceosome are called …

Most pre-mRNA molecules have sections that are removed from the molecule, called introns, and sections that are linked or together to make the final mRNA, called exons.

And an easy way to remember which sequences are exons, which ones are introns, is that exons exits the nucleus and introns stay in the nucleus so exons kind of stands for exit. Now even though the …

Now keep in mind that the complimentary DNA only contains exons, so the introns have already been spliced out. We talk about introns and exons in another video.

The parts of the transcript that are removed are called introns, and they function primarily in the regulation of gene expression. The parts of the transcript that are reconnected are called exons, and …

Eukaryotic pre-mRNAs must have their ends modified, by addition of a 5' cap (at the beginning) and 3' poly-A tail (at the end). Many eukaryotic pre-mRNAs undergo splicing. In this process, parts of the …

I'm not going to go into the details of the actors that cause the splicing, but as part of this eukaryotic processing, you add the cap, you add the tail, and then you splice out the introns, and once you've …