Multiple Choice
In fundamental genetics, a phenotype is best defined as what aspect of an organism?
40
views
1. Introduction to Genetics
Fundamentals of Genetics
Multiple Choice
In the context of Mendelian genetics, which of the following is an example of an allele?
A
A chromosome, such as chromosome 1
B
A version of a gene, such as or for a flower-color gene
C
A genotype, such as
D
A trait, such as purple flower color
Verified step by step guidance1
Understand the definition of an allele: An allele is a specific version or variant of a gene that can exist at a particular locus on a chromosome.
Recognize that a chromosome is a large structure containing many genes, so it is not an allele itself but rather the location where alleles reside.
Identify that a genotype represents the combination of alleles an organism has for a particular gene (e.g., Aa), not a single allele.
Note that a trait is the observable characteristic resulting from the expression of one or more alleles, not the allele itself.
Conclude that the correct example of an allele is a version of a gene, such as A or a for a flower-color gene, because these represent the different forms that gene can take.
Related Videos
Related Practice
