Question

In: Biology

Drosophila females heterozygous for three recessive mutations, a, b, and c were crossed to males homozygous...

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.

Phenotype Number

A B C - 75

A B c - 348

A b c - 96

a B C - 110

a b C - 306

a b c - 65

Determine the gene order.

Determine the distance between genes .

Make a genetic map of the genes.

Solutions

Expert Solution

If the genes are linked then we can find 8 phenotypic categories, out of 8 only six categories are observed which means that there was no DCO categroies hence the DCO categories are marked as zero and calcuated the rest.

Find the below solution for answer and explanation.

Step 1: Gene order determination

gladiator answered 1 year ago
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