THEO 185 Lecture 1: THEO 100 - Lecture 1 (1)
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Related Questions
Female drosophila heterozygous for the 3 X-linked genes sc, s, and v were crossed to males expressing all three mutant phenotypes. The following offspring were recovered.
sc | s | v | 314 |
+ | s | v | 150 |
sc | s | + | 10 |
sc | + | + | 156 |
sc | + | v | 46 |
+ | + | + | 280 |
+ | s | + | 30 |
+ | + | v | 14 |
What is the correct order of these genes?
a) sc s c
b) s v sc (correct answer)
c) v sc s
What is the closest map?
a) sc-----10-----s-----33-----v
b) s-----22-----v-----17-----sc
c) v-----21-----sc-----18-----s
d) sc-----15-----v-----28-----s
e) sc-----33-----v-----10-----s (correct answer)
Approximately what is the interference?
a) .73
b) .64
c) .27
d) .13