Florida Biology EOC Practice Test

What is a phenotype?

1. Genetic makeup of an organism

2. Physical expression of genes

3. Transcription process

4. Type of cell division

The correct answer is: Genetic makeup of an organism

The correct understanding of phenotype is the physical expression of genes in an organism. This includes observable traits such as height, eye color, and the presence of certain physical features. Phenotype is influenced by the organism's genotype, which is the genetic makeup, as well as environmental factors. The other options focus on different biological concepts. The genetic makeup, mentioned in your response, refers to the genotype rather than the phenotype. The transcription process relates to how genes are expressed at a molecular level, while cell division pertains to the process of cell reproduction, which is not directly tied to the concept of phenotype.