Phenotypes PAO PAo PaO Pao PAO pAo pao pao x no zygo Number 91 427 6 106 120 7 323 62

Human Anatomy & Physiology (11th Edition)
11th Edition
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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In the fruit berry nispero, Eriobotrya japonica. Has the recessive mutant genes p (purpura =
fluorescent fruit), a (amarillis = yellow fruit), and o (oval = acidic fruit) on chromosome 6. The
following data represents the phenotypes and number obtained in the testcross mating of an F1
that is heterozygous for all three genes (loci) x homozygous recessive for all three genes (loci).
Number
Phenotypes
PAO
91
PAo
427
PaO
6
Pao
106
PAO
120
pAo
рао
pao
7
323
62
A) What is the sequence of these three genes on chromosome 6?
B) What were the genotypes of the homozygous parents that were used to create the F₁
heterozygote?
C) Construct a map giving the locations and distances in map units.
D) What is the coefficient of coincidence?
Transcribed Image Text:In the fruit berry nispero, Eriobotrya japonica. Has the recessive mutant genes p (purpura = fluorescent fruit), a (amarillis = yellow fruit), and o (oval = acidic fruit) on chromosome 6. The following data represents the phenotypes and number obtained in the testcross mating of an F1 that is heterozygous for all three genes (loci) x homozygous recessive for all three genes (loci). Number Phenotypes PAO 91 PAo 427 PaO 6 Pao 106 PAO 120 pAo рао pao 7 323 62 A) What is the sequence of these three genes on chromosome 6? B) What were the genotypes of the homozygous parents that were used to create the F₁ heterozygote? C) Construct a map giving the locations and distances in map units. D) What is the coefficient of coincidence?
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