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Multiple Choice
What is the primary difference between a phenotype and a genotype?
A
A phenotype is the observable traits of an organism, while a genotype is the genetic makeup.
B
A phenotype is the genetic makeup of an organism, while a genotype is the observable traits.
C
A phenotype is the DNA sequence, while a genotype is the protein structure.
D
A phenotype is the environmental influence on traits, while a genotype is the inherited traits.
Verified step by step guidance
1
Begin by understanding the definitions of phenotype and genotype. A phenotype refers to the observable characteristics or traits of an organism, such as its physical appearance, behavior, and biochemical properties.
Next, define genotype. A genotype is the genetic makeup of an organism, specifically the set of genes it carries. This genetic information is encoded in the DNA sequence.
Consider how these concepts are related. The genotype provides the instructions for building and maintaining the organism, while the phenotype is the expression of these instructions, influenced by both genetic and environmental factors.
Evaluate the options given in the problem. The correct distinction is that a phenotype is the observable traits of an organism, while a genotype is the genetic makeup.
Reflect on the importance of understanding these terms in biology. Recognizing the difference between phenotype and genotype is crucial for studying inheritance, evolution, and the impact of environmental factors on organisms.