Video Buzz | Introns Streaming Video You Should be Watching

June 22nd

January 10th

December 7th

Recipes for life: How genes evolve - life - 24 November 2008 - New Scientist: The most obvious way for a new gene to evolve is through the gradual accumulation of small, beneficial mutations. Less obvious is how an existing gene that already does something important can evolve into a different gene. The scope for such a gene to change tack without capsizing the organism that carries it is very limited. However, as biologists realised a century ago, this constraint no longer applies when mutations produce an entire extra copy of a gene.

November 12th

RNA Processing: This page gives an overview about RNA processing including how capping, polyadenylatio n and splicing occurs in order to obtain mature RNA molecules ready for translation. This was covered in the Biological Molecules Lectures by Dr. Harrison and in the worksessions.

November 10th

Transcription of DNA to Messenger RNA: this page is relevent for my biological molecules modules. The page shows and describes how DNA is sliced forming mRNA. There is a detailed account of how introns are removed from the RNA strand forming mRNA with purely exons (ie, the gene required)

November 8th

'Junk' DNA proves functional: We had learn in BS 1001 that only exons are used to code for protein, these junk DNA once thought of no use at all, but now it is discover and known that they serve a purpose in organisms.

November 3rd

Gene Regulation in Eukaryotes: This page is relevelantto my biological molecules module as it details the use of transcription factors and promoters when regulating genes in eukaryotic cells

October 7th

October 4th

July 14th

May 14th

April 3rd

VCAC: Molecular Processes: mRNA Splicing: Spliicing of mRNA
VCAC: Molecular Processes: mRNA Processing: Detailed explanation of how mRNA is processed before it leaves the nucleus. Definitely AP/Honors appropriate!

March 8th