Phenotypic ratio when crossing two pure-breeding organisms Tester for a test cross Independent assortment 1:1:1:1 Probability K III E III ||| E ||| 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
Phenotypic ratio when crossing two pure-breeding organisms Tester for a test cross Independent assortment 1:1:1:1 Probability K III E III ||| E ||| 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
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter9: Patterns Of Inheritance
Section: Chapter Questions
Problem 1SQ
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Topic Video
Question
![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa98b851b-530f-4c00-8c0d-3d5ef7610ca3%2Fe6d94cd5-b620-4b78-84ec-1881905dded5%2Fujofbid_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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
![](/static/compass_v2/shared-icons/check-mark.png)
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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