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In basic genetics, which statement best defines an allele?
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1. Introduction to Genetics
Fundamentals of Genetics
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In fundamental genetics, what best describes an organism's genotype?
A
A population's overall allele frequencies
B
The observable traits expressed by an organism
C
The specific alleles an organism carries for a gene or set of genes
D
The physical location of a gene on a chromosome
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Understand that genotype refers to the genetic makeup of an organism, specifically the alleles it carries for a particular gene or set of genes.
Differentiate genotype from phenotype, where phenotype is the observable traits or characteristics expressed by the organism.
Recognize that allele frequencies describe a population-level concept, not an individual organism's genotype.
Note that the physical location of a gene on a chromosome is called the gene's locus, which is different from genotype.
Conclude that the best description of an organism's genotype is the specific alleles it carries for a gene or set of genes.
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