Consider the following dihybrid testcross: B/b • E/e  ×  b/b • e/e For the progeny from this testcross, determine the relative proportions (from 0% to 100%) of each genotype if the two genes:

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
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Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
Section: Chapter Questions
Problem 2QP: Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the...
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Consider the following dihybrid testcross: B/b • E/e  ×  b/b • e/e

For the progeny from this testcross, determine the relative proportions (from 0% to 100%) of each genotype if the two genes:

a) are linked (dominant alleles in cis conformation) with no crossing over: Be/be:

be/be:

BE/be:

bE/be:

b) assort independently.

B/b; E/e:

B/b; e/e:

b/b; E/e:

b/b; e/e:

 

c) are linked (dominant alleles in cis conformation) and 20 map units apart. Be/be:

be/be:

BE/be:

bE/be:

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