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2810F10Q1Ans

2810F10Q1Ans - Your name Your lab day and room number or TA...

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______________________________ ________________________________ Your name Your lab day and room number or TA name BioGD2810 Genetics Fall 2010 Quiz #1 I. Complete the following table. (10 points) Letters A-H below refer to phenotypes dictated by one or two genes and the genetic phenomena shown. Crosses are made between parents both heterozygous for all genes involved (for example, in A the mother and father are both Rr Ss ; in B the parents are each Yy ). In the two left columns, place the letters (A-H) signifying all phenomena that would yield the indicated number of phenotypic classes among the progeny of these parents, and indicate the expected ratios of these phenotypes in the same row as the letter. Letters may be used more than once; some letters may not be used at all; and some spaces may remain blank. Assume all genes involved segregate independently. 2 phenotypic classes 3 phenotypic classes Letter Ratio Letter Ratio C 15:1 A 9:3:4 D 3:1 B 1:2:1 E 13:3 E 12:3:1 F 9:7 G 1:2:1 A. Two genes, recessive epistasis
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2810F10Q1Ans - Your name Your lab day and room number or TA...

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