An organism of the genotype JjKKLI was testerossed to an organism of genotype jkkll. The genotypes of the progeny are as follow: JjKkll ijkkll Jjkkll ijKkl 40 JJKKLI ijkkLI JjkkLI ijKkLI 39 40 11 41 10 10 12 (i) Assuming that the three genes assorting independently, how many genotypic classes would result in the offspring and in what proportion?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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An organism of the genotype JJKKLI was testcrossed to an organism of genotype jkkll. The
genotypes of the progeny are as follow:
JJKKLI
ijkkLI
JjkkLI
ijKkLI
JjKkll
ijkkll
Jjkkll
ijKkl
40
39
40
11
41
10
10
12
(i)
Assuming that the three genes assorting independently, how many genotypic classes
would result in the offspring, and in what proportion?
If the three genes are so tightly linked on the same chromosome that no crossover
occurs between them, how many genotypic classes would result in the offspring, and
in what proportion?
(ii)
(iii)
What can you conclude from the actual data about the location of the three genes in
relation to another?
Transcribed Image Text:An organism of the genotype JJKKLI was testcrossed to an organism of genotype jkkll. The genotypes of the progeny are as follow: JJKKLI ijkkLI JjkkLI ijKkLI JjKkll ijkkll Jjkkll ijKkl 40 39 40 11 41 10 10 12 (i) Assuming that the three genes assorting independently, how many genotypic classes would result in the offspring, and in what proportion? If the three genes are so tightly linked on the same chromosome that no crossover occurs between them, how many genotypic classes would result in the offspring, and in what proportion? (ii) (iii) What can you conclude from the actual data about the location of the three genes in relation to another?
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