Chromosome Deletion 1 Deletion 2 Deletion 3 Deletion 4 Deletion 5 Deletion 6 When flies homozygous for the recessive mutations are crossed with flies heterozygous for the deletions, the following results are obtained, in which "m" represents a mutant phenotype and a plus sign (+) represents the wild type. On the basis of these data, determine the relative order of the seven mutant genes on the chromosome. Mutations Deletion a m m 3 4 m S E + + + + + a + + E E E + * + + E E E E U E + E E + + a + + E + + E - E E + + + +
Chromosome Deletion 1 Deletion 2 Deletion 3 Deletion 4 Deletion 5 Deletion 6 When flies homozygous for the recessive mutations are crossed with flies heterozygous for the deletions, the following results are obtained, in which "m" represents a mutant phenotype and a plus sign (+) represents the wild type. On the basis of these data, determine the relative order of the seven mutant genes on the chromosome. Mutations Deletion a m m 3 4 m S E + + + + + a + + E E E + * + + E E E E U E + E E + + a + + E + + E - E E + + + +
Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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The locations of six deletions have been mapped to a Drosophila
chromosome, as shown in the following deletion map. Recessive
mutations a, b, c, d, e, and f are known to be located in the same region
as the deletions, but the order of the mutations on the chromosome is not
known.

Transcribed Image Text:Chromosome
Deletion 1
Deletion 2
Deletion 3
Deletion 4
Deletion 5
Deletion 6
When flies homozygous for the recessive mutations are crossed with
flies heterozygous for the deletions, the following results are obtained,
in which "m" represents a mutant phenotype and a plus sign (+)
represents the wild type. On the basis of these data, determine the
relative order of the seven mutant genes on the chromosome.
Mutations
Deletion
a
m
m
3
4
m
S E + + + + +
a + + E E E +
* + + E E E E
U E + E E + +
a + + E + + E
- E E + + + +
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