A triple-point testcross of a plant is used to determine the order of linked genes g, t, and l. The wild-type parental phenotypes are green, tall, and leafy, represented by the triple heterozygote g+t+l+/gtl. The mutant plants are red, dwarf, and sparse, represented by the triple recessive genotype gtl/gtl. The least frequent phenotypes in the progeny of the testcross are red, tall, and leafy, and green, dwarf, and sparse. What is the order of the three genes?

Question

Quizplus · Accepted Answer

The Answer of A triple-point testcross of a plant is used to determine the order of linked genes g, t, and l. The wild-type parental phenotypes are green, tall, and leafy, represented by the triple heterozygote g+t+l+/gtl. The mutant plants are red, dwarf, and sparse, represented by the triple recessive genotype gtl/gtl. The least frequent phenotypes in the progeny of the testcross are red, tall, and leafy, and green, dwarf, and sparse. What is the order of the three genes?

A Triple-Point Testcross of a Plant Is Used to Determine