Multiple Choice
In basic genetics, what is an allele?
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1. Introduction to Genetics
Fundamentals of Genetics
Multiple Choice
In the context of fundamentals of genetics, what is an allele?
A
An alternative form of a gene found at a specific locus on a chromosome
B
The complete set of DNA in an organism (the genome)
C
A segment of DNA that always codes for a trait in the same way in all individuals
D
A protein produced by a gene that catalyzes a biochemical reaction
Verified step by step guidance1
Understand that the question is asking for the definition of an allele in genetics.
Recall that a gene is a segment of DNA located at a specific position (locus) on a chromosome that influences a particular trait.
Recognize that an allele refers to the different versions or alternative forms of the same gene that can exist at the same locus on homologous chromosomes.
Note that alleles can vary between individuals, leading to variations in traits, but they occupy the same position on the chromosome.
Conclude that the correct definition of an allele is: an alternative form of a gene found at a specific locus on a chromosome.
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