WHAT is 'gene exression'? (1 Viewer)

[^___ShabS___^]

does N E 1 know what this dot pnt is going on about.....????
what the hell is gene expression..... !?


a) Use available evidence to analyse the links between gene expression and maintenance and repair of body tissues.

 

[babydoll_]

This is one of the harder dotpoints. It's not really covered much in the textbooks, but we've talked about it here: http://www.boredofstudies.org/community/showthread.php?t=33062&highlight=gene+expression

 

[Survivor39]

Basically gene expression is the process of going from DNA ---> RNA (mRNA) ---> protein.

therefore, a gene is expressed (in the protein). e.g hair colour, expressed by protein, is made by genes.

 

[malkin86]

genes can be present, but not expressed, too.

basically one gene -> one polypeptide -> part of a protein. (Proteins such as enzymes [for metabolism], muscles), and many proteins can = cells. If a gene goes wrong, the polypeptide goes wrong, and so does the protein. if it is an enzyme, it will not act upon its substrate, which can be quite disastrous.

 

[t-i-m-m-y]

yeah dot point says u need evidence.. so evidence

genetic diseases etc

 

[TheKing]

i'm sure that we've talked about this too manytimes before cause this is one of the more homo points in the syllabus...