Which of the following is not an example of a phenotype?

• A. Blood type
• B. Genetic mutation
• C. Height
• D. Eye color

Answer: (B)

Verified step by step guidance

1. Understand the definition of phenotype: A phenotype refers to the observable characteristics or traits of an organism, such as its morphology, development, biochemical properties, physiology, and behavior.
2. Identify examples of phenotypes: Blood type, height, and eye color are all observable traits that can be measured or seen, making them examples of phenotypes.
3. Consider the nature of genetic mutation: A genetic mutation is a change in the DNA sequence. It is not directly observable as a trait but can lead to changes in phenotypes.
4. Differentiate between genotype and phenotype: Genotype refers to the genetic makeup of an organism, while phenotype is the expression of the genotype in the form of observable traits.
5. Conclude which option is not a phenotype: Since genetic mutation is a change in the DNA and not an observable trait itself, it is not considered a phenotype.