Which statement correctly differentiates genotype from genes?

Which statement correctly differentiates genotype from genes?

• A. Genotype refers to DNA sequences, while genes refer to inherited traits
• B. Genotype is a set of genes a person possesses, while genes are DNA segments that code traits
• C. Genotype and genes are the same concept
• D. Genotype refers to environmental influences on gene expression

Answer: (B)

Genotype refers to your genetic makeup—the specific variants (alleles) you carry across your genes. Genes are the individual DNA segments that carry instructions to make proteins or regulate processes, and they are the units of heredity located on chromosomes. Saying the genotype is a set of genes captures the idea that your genetic constitution is the collection of those variant forms you possess, while a gene is the actual DNA piece that codes for a trait. For example, for a gene involved in a trait, your genotype might be the combination of alleles you have (like two versions of that gene), and the goal is to understand how those variants influence potential traits. Environmental factors can affect how those genes are expressed into visible traits, but they don’t define what the genotype is. The other statements mix up what genes are or what genotype represents, so this view best distinguishes the two concepts.

Genotype refers to your genetic makeup—the specific variants (alleles) you carry across your genes. Genes are the individual DNA segments that carry instructions to make proteins or regulate processes, and they are the units of heredity located on chromosomes. Saying the genotype is a set of genes captures the idea that your genetic constitution is the collection of those variant forms you possess, while a gene is the actual DNA piece that codes for a trait. For example, for a gene involved in a trait, your genotype might be the combination of alleles you have (like two versions of that gene), and the goal is to understand how those variants influence potential traits. Environmental factors can affect how those genes are expressed into visible traits, but they don’t define what the genotype is. The other statements mix up what genes are or what genotype represents, so this view best distinguishes the two concepts.