Multiple Choice
In genetics, which term describes an alternate form of a gene?
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1. Introduction to Genetics
Fundamentals of Genetics
Multiple Choice
Which option best describes a phenotype in genetics?
A
The process by which DNA is copied prior to cell division
B
The complete set of DNA sequences (alleles) an organism carries at all loci
C
The observable characteristics of an organism resulting from the interaction of its genotype and environment
D
A specific version of a gene found at a particular locus
Verified step by step guidance1
Understand that a phenotype refers to the observable traits or characteristics of an organism, such as eye color, height, or blood type.
Recognize that these observable traits result from the interaction between the organism's genotype (its genetic makeup) and the environment it experiences.
Differentiate phenotype from genotype, where genotype is the complete set of alleles an organism carries, and phenotype is how those alleles are expressed physically or biochemically.
Note that the other options describe different genetic concepts: DNA replication (copying DNA), genotype (set of alleles), and allele (a specific version of a gene).
Conclude that the best description of phenotype is the observable characteristics resulting from genotype and environment interaction.
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