What's the difference between mRNA and pre-mRNA ... Furthermore, new exons can be inserted into old introns, creating new proteins without disrupting the function of the old gene.

Exons can be separated by intervening sections of DNA that do not code for proteins, known as introns. Following transcription, new, immature strands of messenger RNA, called pre-mRNA, may contain ...

First, a precursor mRNA (pre-mRNA) is formed that contains both coding information for the protein (exons) as well as non-coding segments (introns). The introns need to be cut out of the pre-mRNA ...

They succeeded once they were able to isolate the splicing complexes of the fungus that were in the midst of quality control ...

the sequence motifs required are located close by on the pre-mRNA,” said Cooper. “Often, they will be clustered and usually be within the first 100 or 200 nucleotides within the introns. They can also ...

Two molecular control factors play a decisive role in what is known as splicing, the cutting and assembly of mature messenger RNA – a prerequisite for ...

Using yeast as a study model, Hopper’s team saw several years ago that some lopped-off intron sequences were complementary to mRNA sequences, signaling the introns might have importance to ...

Each tRNA molecule has an anticodon that is complementary to a specific codon on the mRNA. The tRNA binds to its corresponding ... Other ribozymes include self-splicing introns and the RNA component ...

A child with a rare genetic disorder — spinal muscular atrophy type I — was treated prenatally for the first time. Courtesy of Jakob Owens  via Unsplash During an amniocentesis test, a long, thin ...