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Unformatted text preview: Recessive genes -if the gene is recessive, the trait will not be expressed unless the paired gene from the other parent is also recessive Eg. Brown eyes & dark hair are dominant over blue eyes & blond hair Polygenic effects numerous genes combine to determine at trait Genetic counseling identify whether a person has the specific gene that will result in certain diseases Eg. Huntingtons disease, breast cancer,-providing medical counseling & support Genetic engineering Recombinant DNA procedures-slice & combine DNA from 2 different organisms Eg. Production of human growth hormone Gene knockout technique-destroy certain genes to determine the effects on development & behavior BUT most behaviors effected by numerous genes Contemporary Applications Cloning:is the production of one or more individual plants or animals that are genetically identical to another plant or animal...
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- Fall '10