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In the context of the fundamentals of genetics, a segment of DNA that carries information for a functional product (such as a protein or functional RNA) is called a(n):
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1. Introduction to Genetics
Fundamentals of Genetics
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In the context of Mendelian genetics, what is the best definition of an allele?
A
An alternative form of the same gene found at a specific locus on a chromosome
B
A distinct gene that always controls a different trait than other genes at the same locus
C
A segment of DNA that codes for multiple unrelated proteins through alternative splicing
D
A pair of homologous chromosomes inherited together as a single unit
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Understand that in Mendelian genetics, genes are located at specific positions called loci on chromosomes.
Recognize that an allele refers to the different versions or forms of the same gene that can exist at a particular locus.
Note that these alternative forms can result in variations in the trait controlled by that gene.
Distinguish alleles from entirely different genes, which are located at different loci and control different traits.
Conclude that the best definition of an allele is an alternative form of the same gene found at a specific locus on a chromosome.
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