What is a phenotype?

What is a phenotype?

• A. The observable trait
• B. The genetic makeup
• C. The enzyme that carries out metabolism
• D. The location of a gene

Answer: (A)

Phenotype is what you can see or measure—the observable traits that come from how a organism’s genes interact with its environment. For example, eye color, height, leaf shape, or fur pattern are phenotypes. The genotype is the genetic makeup—the alleles an individual carries—which helps determine the phenotype but isn’t itself the trait you observe. The enzyme mentioned would be a protein that can influence how a trait is expressed, but that protein is part of the process, not the trait itself. The location of a gene describes where a gene sits in the genome, not the observable characteristics.

Phenotype is what you can see or measure—the observable traits that come from how a organism’s genes interact with its environment. For example, eye color, height, leaf shape, or fur pattern are phenotypes. The genotype is the genetic makeup—the alleles an individual carries—which helps determine the phenotype but isn’t itself the trait you observe. The enzyme mentioned would be a protein that can influence how a trait is expressed, but that protein is part of the process, not the trait itself. The location of a gene describes where a gene sits in the genome, not the observable characteristics.