beadle and tatum (1 Viewer)

[NeRdY]

Why did they change their hypothesis to 'one gene-one polypetide'???

And which experiement are we suppposed to refer to that they used? the bread mould neurospora thingy or the drosphilia flies and their eye colour? or possibly both?

 

[Tommy_Lamp]

http://www.boredofstudies.org/community/showthread.php?t=46585

Its all there.
Also, the eye colour experiment was performed by Morgan and led to his hypothesis of sex-linked inheritence, the bread mould experiment is what Beadle and Tatum did.

 

[lukebennett]

it is the mould/neurospora. it is bombarded with x rays then grown in a culture however it does not survive without an enzyme (i think) added to it which is essential to its survival and was produced prior to xray. thus the xrays caused a mutation in the DNA which meant that the production of the needed enzyme was not successful.

 

[silvermoon]

had to be changed from one gene-one protein because it was realised that proteins were made up of more than one polypeptide.

 

[lukebennett]

and that a gene did not necessarily code for an enzyme or protein. several genes may be needed to form a gene maybe