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"These are the results of a three point cross in Drosophila for the three loci DEF:...

"These are the results of a three point cross in Drosophila for the three loci DEF: dfE =287, dfe =28, dFe =211, Dfe=600, DfE =300, DFE=76, DFe =333, dFE =401. What is the map distance to 2 decimal places between the D and E loci? Hint: Establish gene order first."

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Expert Solution

Three point test cross is cross which involves three loci. It is used to find distance between two loci. Progeny with highest frequency are known as parental type and progeny with lowest frequency are known as double cross over.

So map distance between D and E is 27.50 cM ( centi Morgon) or 27.50 mu (map unit).

gladiator answered 2 years ago
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