Phenotypic ratio when crossing two pure-breedingorganismsTester for a test crossIndependent assortment1:1:1:1ProbabilityIIIEIII4:0.Alleles of genes will sort independently of oneanother into gametes if the genes are not linked onthe same chromosome.The likelihood of a outcome occurring.A double recessive condition such as bb.A diagnostic Mendelian ratio for a dihybridheterozygote mated with a tester.Open in Reading Vie

Name: Phenotypic ratio when crossing two pure-breedingorganismsTester for a
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Description: Phenotypic ratio when crossing two pure-breedingorganismsTester for a test crossIndependent assortment1:1:1:1ProbabilityIIIEIII4:0.Alleles of genes will sort independently of oneanother into gametes if the genes are not linked onthe same chromosome.

Answered: Phenotypic ratio when crossing two…

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

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Phenotypic ratio when crossing two pure-breeding
organisms
Tester for a test cross
Independent assortment
1:1:1:1
Probability
III
E
III
4:0.
Alleles of genes will sort independently of one
another into gametes if the genes are not linked on
the same chromosome.
The likelihood of a outcome occurring.
A double recessive condition such as bb.
A diagnostic Mendelian ratio for a dihybrid
heterozygote mated with a tester.
Open in Reading Vie

Expert Solution

Step 1

Phenotypic ratio of a cross between two pure breeding organisms will result in all the progeny having heterozygous condition and the dominant phenotype will be expressed. For a monohybrid cross, such ratio will be 4:0.

Therefore,

Phenotypic ratio when crossing two pure breeding organisms - 4:0.

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