Waxy endosperm (wx), shrunken endosperm (sh), and yellow seedling (y) are encoded by three recessive genes in corn that are linked on chromosome. A corn plant homozygous for all three dominant alleles is crossed with a plant homozygous for all the recessive alleles. The resulting Fi are then testerossed with a plant homozygous for the recessive genes. The progeny of the testcross are given below: wx sh 18 y 15 350 Wx sh y 359 sh 155 wx y 149 WX 32 sh y 39 (a) Using proper nomenclature, determine the genotypes of the P and Fi generation. i Determine order of these genes on the chromosome. 4i) What is the gene configuration of the F1 heterozygous? Construct a genetic map showing the distances between these genes.

Human Anatomy & Physiology (11th Edition)
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Answer bi and bii

Waxy endosperm (wx), shrunken endosperm (sh), and yellow seedling (y) are encoded by
three recessive genes in corn that are linked on chromosome. A corn plant homozygous for all
three dominant alleles is crossed with a plant homozygous for all the recessive alleles. The
resulting F, are then testerossed with a plant homozygous for the recessive genes. The
progeny of the testcross are given below:
wx
sh
18
+
y
15
350
WX
sh
y
359
sh
155
wx
+
y
149
WX
32
sh
y
39
(a)
Using proper nomenclature, determine the genotypes of the P and Fi generation.
a il Determine order of these genes on the chromosome.
4i) What is the gene configuration of the F1 heterozygous?
Construct a genetic map showing the distances between these genes.
Transcribed Image Text:Waxy endosperm (wx), shrunken endosperm (sh), and yellow seedling (y) are encoded by three recessive genes in corn that are linked on chromosome. A corn plant homozygous for all three dominant alleles is crossed with a plant homozygous for all the recessive alleles. The resulting F, are then testerossed with a plant homozygous for the recessive genes. The progeny of the testcross are given below: wx sh 18 + y 15 350 WX sh y 359 sh 155 wx + y 149 WX 32 sh y 39 (a) Using proper nomenclature, determine the genotypes of the P and Fi generation. a il Determine order of these genes on the chromosome. 4i) What is the gene configuration of the F1 heterozygous? Construct a genetic map showing the distances between these genes.
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