In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very near the centromere of the chromosome carrying it. The allele G for green stigma is dominant to g for red stigmas. A homozygous green autotetraploid strain is crossed with a homozygous red autotetraploid strain.What is the genotype of the F1?Show the types of gametes the F1’s may be expected to form and derive the expected proportion of each.What phenotypic ratio of green to red is expected if:The F1’s are intercrossed?The F1’s are crossed with red plantsIf the G locus were 50 or more map units from the centromere, what types and proportions of gametes would the F1 be expected to produce? Derive the expected F2 phenotypic ratio.

Name: In an autotetraploid Chinese primrose (Primula sinensis L.), the gene
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Description: In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very near the centromere of the chromosome carrying it. The allele G for green stigma is dominant to g for red stigmas. A homozygous green autotetraploi

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Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...

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In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very near the centromere of the chromosome carrying it. The allele G for green stigma is dominant to g for red stigmas. A homozygous green autotetraploid strain is crossed with a homozygous red autotetraploid strain.

What is the genotype of the F₁?
Show the types of gametes the F₁’s may be expected to form and derive the expected proportion of each.
What phenotypic ratio of green to red is expected if:

The F₁’s are intercrossed?
The F₁’s are crossed with red plants

If the G locus were 50 or more map units from the centromere, what types and proportions of gametes would the F₁ be expected to produce? Derive the expected F₂ phenotypic ratio.

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