hey can someone help (1 Viewer)

[TSANO]

what evidence led to Beadle n Tatum's 'one gene-one protein' hypothesis n why was this altered to the 'one gene-one polypeptide' hypothesis.... i realy need to get this done asap :burn:

 

[xiao1985]

radiation (mutation of a particular gene) of mold causes the mold stop producing one type of vitamin

 

[JCDenton]

What happened is that they stopped mold from producing a certain protein by removing a peice of DNA such that it would not survive without the protien being introduced to the sample to keep it alive. From this they concluded the "one gene - one protein" theory.

This later changed to 1 gene - 1 polypeptide because that protien was formed from only one polypeptide. Other protiens required many polypeptides.

 

[Buiboi]

hmmm learnt this bit last year... basically it ocmes down to the use of x-rays to created a mutated bread mould called i THINK neurospora, something like that, basically from this they realised that it lacked a certain enzyme which affected the biochemical activity of the organism. And so from this they concluded that for every gene was controlled by a certain enzyme, which was then changed to one gene one protein and then to one gene one polypeptide in the fact that both enzymes and proteins are made up of polypeptides, cuz polypeptides are like the building blocks of proteins and enzymes, however the main thing is that its one gene for one polypeptide in that protein coudl be one OR more polypeptide

THERE YOU GO!