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QR Challenge: Introduction to Genetics

QuestionAnswer
Term used to describe a genetic cross involving one traitMonohybrid
What are the alternate forms of a gene called?Alleles
Chart used to show the expected outcomes of a genetic crossPunnet Square
Genetic makeup of an organismGenotype
Genotype that consists of two of the same alleles for a traitHomozygous
An organism's physical appearancephenotype
An allele that masks the presence of anotherDominant
Genotype that consists of two different alleles for a traitHeterozygous
Expected percentage of tall offspring if you cross two plants that are heterozygous tall75%
Examples of polygenic traitsHeight, Eye color, Hair color, Skin color
The law of _________________________ states that alleles separate from one another during gamete formation.Segregation
Expected percentage of pink offspring in a cross between a red Four O'Clock plant and a white Four O'Clock plant50%
Expected percentage of black and white chickens in a cross between a black chicken and a white chicken100%
Inheritance pattern in which both alleles are completely expressedCodominance
Inheritance pattern in which there are more than two alleles for a traitMultiple alleles
Expected percentage of white offspring if you cross two plants that are heterozyous purple
Inheritance pattern in which both alleles are partially expressedIncomplete dominance
Inheritance pattern in which there are more than two genes for a traitPolygenic Inheritance
Expected percentage of dominant offspring in a cross between a heterozygous dominant and a homozygous recessive parent50%
Example of an codominant traitRed and White flowered Plants

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