October_22_answers_from_Oct_15_practice_probs

October_22_answers_f - Practice Problem Answers From October 15 1 About 70 of Americans perceive a bitter taste from the chemical

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Practice Problem Answers From October 15 1. About 70% of Americans perceive a bitter taste from the chemical phenylthiocarbamide (PTC). The ability to taste this chemical results from a dominant allele (T) and not being able to taste PTC is the result of having two recessive alleles (t). Albinism is also a single locus trait with normal pigment being dominant (A) and the lack of pigment being recessive (a). A normally pigmented woman who cannot taste PTC has a father who is an albino taster. She marries a homozygous, normally pigmented man who is a taster but who has a mother that does not taste PTC. What are the genotypes of the possible children? Assume that these traits are located on different chromosomes. Answer: AATt, AaTt, AAtt, Aatt
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2. Clouded leopards are a medium sized, endangered species of cat, living in the very wet cloud forests of Central America. Assume that the normal spots (XN, pictured here) are a dominant, sex-linked trait and that dark spots are the recessive counterpart. Suppose as a Conservation Biologist, you are
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This note was uploaded on 02/25/2010 for the course BSC 2010 taught by Professor Bowes during the Spring '08 term at University of Florida.

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October_22_answers_f - Practice Problem Answers From October 15 1 About 70 of Americans perceive a bitter taste from the chemical

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