In D. melanogaster, scarlet eyes (st), curled wings (cu), and spineless bristles (ss) are recessive traits located on chromosome III in that order. The distance between st and cu is 10 cM and the distance between cu and ss is 12 cM. The CoC for this chromosome is 1. A true-breeding female expressing scarlet eyes and spineless bristles is crossed to a true-breeding male expressing curled wings. The F1 are wild type. An F1 female is then test crossed to a male expressing all three traits. Among the F2 progeny, how often would you expect to observe flies expressing only scarlet eyes? Using the same information from above, among the F2 progeny, how often would you expect to observe flies expressing only spineless bristles? Using the same information from above, among the F2 progeny, how often would

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter11: The Basic Principles Of Heredity
Section: Chapter Questions
Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...
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 In D. melanogaster, scarlet eyes (st), curled wings (cu), and spineless bristles (ss) are recessive traits located on chromosome III in that order. The distance between st and cu is 10 cM and the distance between cu and ss is 12 cM. The CoC for this chromosome is 1. A true-breeding female expressing scarlet eyes and spineless bristles is crossed to a true-breeding male expressing curled wings. The F1 are wild type. An F1 female is then test crossed to a male expressing all three traits. Among the F2 progeny, how often would you expect to observe flies expressing only scarlet eyes?

Using the same information from above, among the F2 progeny, how often would you expect to observe flies expressing only spineless bristles?

Using the same information from above, among the F2 progeny, how often would you expect to observe flies expressing only curled wings?

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