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Question #1 You have a set of genes, A, B, C, D and E. 3-factor crosses give the following results:
FIRST CROSS:
parents
progeny
frequency
donor
A+B-C+
A+B+C+
high
recipient
A-B+C-
A+B+C-
A+B-C-
low
SECOND CROSS:
C+D+E+
C+D-E±
CDT-
C+D+E-
C+D-E-
a. What is the gene order for the three genes ABC?
b. What is the gene order for the three genes CDE?
c. What are ALL of the possible arrangements of these 5 genes (given the results from these two crosses)? There may be only one gene order that is possible, or there may be many; you must decide which.
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