Question: Drosophila females heterozygous for three recessive mutations, a, b, and c, were crossed to males homozygous for all three mutations. The cross yielded the following

Drosophila females heterozygous for three recessive mutations, a, b, and c, were crossed to males homozygous for all three mutations. The cross yielded the following results:

Construct a linkage map showing the correct order of these genes and estimate the distances between them.

Phenotype Number 75 +++ 348 +bc 96 110 a ++ ab+ 306 abc 65

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