Transcription: Our bodies contain thousands of genes and the selfish gene theory says that these bodies of ours are just machines to try and ensure the survival of these genes. So all the genes cooperate in the creation and maintenance of this body, which is a very complicated job. Any one gene will have many different effects on many different parts of the body and some of these effects depend on interactions with other genes in the body. We don't understand an awful lot about genes work together like this, but it's definitely not true to say that there is a gene for height or for blindness. It's just not t ...
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