Genes A , B , C , D , and E are linked on a chromosome and occur in the order gi

Question

Genes A, B, C, D, and E are linked on a chromosome and occur in the order given. The test cross Ae / aE × ae / ae indicates the genes recombine with a frequency of 28%.

Problem 5.9 Genes A, B, C, D, and E are linked on a chromosome and occur in the order given. The test cross Ae aEX ae ae indicates the genes recombine with a frequency of 28%. Part A If 1000 progeny are produced by the test cross, determine the number of progeny in each outcome class Enter your answers as whole numbers separated by commas (example: 200, 200, 130, 130). AEG Ae aE AE ae Submit My Answers Give Up vide Feedback Continue

Explanation / Answer

Answer: Ae 360, aE 360, AE 140, ae 140.

Explanation:

Recombination frequency = 28%

Non-recombiant frequency = 72% (as 100-28 =72)

Parental (non recombiant) genotypes = Ae & aE= each 36%. It means 360 out of 1000

Recombinant genotypes= AE & ae = 14%. It means140 out of 1000

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