Lecture HW 4 Answers

Lecture HW 4 Answers - or WW ) = all starchy parents can...

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Jessica Kubicek Lecture Section 2 Discussion Section 9 February 23, 2006 Lecture Homework 4 1. (a) mother - aa father - aa (b) mother - aa father - Aa (c) mother - Aa father – Aa 2. Starchy ( Ww or WW ), starchy ( Ww or WW ) Starchy ( Ww ), starchy ( Ww ) Starchy ( WW ), waxy ( ww ) Starchy ( Ww ), waxy ( ww ) 3. Normal vision/non-PKU = 9/16 Normal vision/PKU = 3/16 Nearsightedness/non-PKU = 3/16 Nearsightedness/PKU = 1/16 4. (a) EeNn (b) 2/16 or 1/8 (c) 4/16 or 1/4
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Work Page 1. (a) all children are ( aa ) so the parents are both ( aa ) (b) albino woman ( aa) and normal man must be ( Aa ) -to have albino and normal children there must be a dominant and recessive allele present in the man’s genotype (c) woman ( A a) and man ( A a) are normal parents -to have normal as well as albino children there must be recessive and dominant alleles in both parents (normal phenotypes) 2. genotypes for the parents starchy ( Ww or WW ) x starchy ( Ww
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Unformatted text preview: or WW ) = all starchy parents can have recessive allele even if it is not expressed starchy ( Ww ) x starchy ( Ww ) = starchy and waxy (3:1) starchy ( WW ) x waxy ( ww ) = starchy starchy ( Ww ) x waxy ( ww ) = starchy and waxy (1:1) 3. normal vision E nearsightedness e PKU N non-PKU (normal) n man EeNn woman EeNn EN eN En en EN EENN EeNN EENn EeNn eN EeNN eeNN EeNn eeNn En EENn EeNn EEnn Eenn en EeNn eeNn Eenn eenn Normal vision/non-PKU = 9/16 Normal vision/PKU = 3/16 Nearsightedness/non-PKU = 3/16 Nearsightedness/PKU = 1/16 4. daughter eeNn husband EeNn eN en eN en EN EeNN EeNn EeNN EeNn eN eeNN eeNn eeNN eeNn En EeNn Eenn EeNn Eenn en eeNn eenn eeNn eenn Normal vision/non-PKU = 6/16 or 3/8 Normal vision/PKU = 2/16 or 1/8 Nearsightedness/non-PKU = 6/16 or 3/8 Nearsightedness/PKU = 2/16 or 1/8...
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Lecture HW 4 Answers - or WW ) = all starchy parents can...

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