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1.
The science of heredity linked to DNA and other molecules. Scientists are currently working to decode the human genome in one of the biggest scientific efforts ever attempted.
Genetics is exclusively used by scientists for evil purposes, as shown by Hollywood and its accurate portrayal of scientific understanding. Typically scientists are shown to be cloning humans, resurecting dinosaurs, producing alien species or just tampering with nature in general. This is ideal for it's target audience of Macdonald eating, stars and stripes waving, IQ bereft audience .
"Shall we go see that new film?"
"Yes lets its shows us (the american public) how evil genetics is"
"Erm what about our GM crops, our hormone boosted cattle and pesticides?"
"That okay thats the American way of life thats not Genetics"
by binsurfer December 11, 2003
 
2.
1: tending to occur among members of a family usually by heredity; "an inherited disease"; "familial traits"; "genetically transmitted features" 2: of or relating to or produced by or being a gene; "genic combinations"; "genetic code" 3: of or relating to the science of genetics; "genetic research"
"The genetic structure of humans is not dissimilar to that of silkworms: observe the blah blah blah blah..."

"He looks just like his sister... it must be genetic."

"Look at that freak. Maybe he's a victim of genetic research"
by isquil jackson April 06, 2003
 
3.
A legitimate science that has been abused by mislead doctors for the benefit of mass society and huge drug companies. Propagated as the utter solution to everything that is wrong with society, when the causes are social. Has been expanded to include 'psychiatric genetics' (or 'behavioral genetics'), a field which attempts to convince the public that our finest behaviors are governed by genes without providing true evidence to support this claim. What 'evidence' that is presented tends to jump to conclusions (correlation =/= causation). It's also used by the general masses to absolve themselves of responsibility for their actions commonly (He did it because he was genetically predisposed to violence!). All in all, controlling for environmental factors is damn near impossible at this time, rendering most of 'behavioral genetics' worthless.
Genetics is a legitimate field, but when it becomes an enforcer of a status quo based on little or no evidence, it is nothing short of an atrocity.
by Shadow Creator November 25, 2007