Genes at loci f, m, and w are linked, but their order is unknown. The F1 heterozygotes from a cross of FFMMWW x ffmmww are test crossed. The most frequent phenotypes in the test cross progeny will be FMW and fmw regardless of what the gene order turns out to be. What classes of testcross progeny (phenotypes) would be least frequent if locus m is in the middle?What classes would be least frequent if locus f is in the middle?What classes would be least frequent if locus w is in the middle?

If locus m is in the middle:Gene order: f - m - wThe double crossover would switch the alleles at…

Answered: Genes at loci f, m, and w are linked,…

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...

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Genes at loci f, m, and w are linked, but their order is unknown. The F₁ heterozygotes from a cross of FFMMWW x ffmmww are test crossed. The most frequent phenotypes in the test cross progeny will be FMW and fmw regardless of what the gene order turns out to be.

1. What classes of testcross progeny (phenotypes) would be least frequent if locus m is in the middle?
2. What classes would be least frequent if locus f is in the middle?
3. What classes would be least frequent if locus w is in the middle?

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