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Multiple Choice
What is the primary difference between a phenotype and a genotype?
A
A phenotype is the genetic makeup of an organism, while a genotype is the observable traits.
B
A phenotype and genotype are identical and interchangeable terms.
C
A phenotype is determined solely by environmental factors, while a genotype is determined by diet.
D
A phenotype refers to the observable traits of an organism, while a genotype refers to the genetic makeup.
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, consisting of the specific alleles inherited from its parents. It is the set of genes that an organism carries.
Recognize that the phenotype is influenced by both the genotype and environmental factors. While the genotype provides the potential for certain traits, the environment can affect how these traits are expressed.
Understand that the genotype is not directly observable, but it can be inferred through genetic testing or by examining the phenotype and considering environmental influences.
Conclude by noting that the primary difference between phenotype and genotype is that phenotype is the expression of traits, while genotype is the underlying genetic code that contributes to these traits.