Scelta multipla
If the phenotype reflects the activities of more than one gene, it is called a ______ trait.
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3. Extensions to Mendelian Inheritance
Variations of Dominance
Scelta multipla
In the context of variations of dominance, the phrase "more than 2 versions of a gene" refers to which genetic concept?
A
Codominance
B
Incomplete dominance
C
Multiple alleles
D
Epistasis
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Understand that the phrase "more than 2 versions of a gene" refers to the presence of more than two alternative forms (alleles) of a single gene within a population.
Recall that codominance and incomplete dominance describe how two alleles interact in heterozygotes, but they do not imply more than two alleles exist for that gene.
Recognize that epistasis involves interactions between different genes, not multiple versions of the same gene.
Identify that the genetic concept describing more than two alleles for a gene is called "multiple alleles."
Therefore, the phrase "more than 2 versions of a gene" corresponds to the concept of multiple alleles.
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