Chapter 1 Weblems

1.2 (a) (b) (c) Native language does not rely on sequences of genes. The ability to learn languages easily may be affected by particular sequences but not naive language. Life history and environment play the largest role in contributing to native language. The language will be taught by guardians and be dictated by what region of the world one lives in and where one's parents hailed from. Epigenetics, like the particular sequences of genes, does not play a direct role in contributing to one's native language. (d) Particular gene sequences are a major contributor to Huntington's disease. The number of repetitions of CAG determines if an individual will have Huntington's and to what extent. Environment and life history do not contribute to Huntington's disease before onset. After the disease has started to affect the body, medication, physical therapy, and speech therapy can be used to treat symptoms, but not to cure them. I am a little unsure on how much epigenetics contributes to the disease. (e) (f)

1.3 Trick question! Ubiquitin genes are on multiple chromosomes as metioned previosuly in the text.

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