Multiple Choice
Which of the following is an example of a phenotype influenced by the environment?
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13. Mendelian Genetics
Genotype vs. Phenotype
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Which of the following statements about a person's phenotype is correct?
A
A phenotype is the set of genes that an organism carries, regardless of their expression.
B
A phenotype refers to the genetic composition of an organism, including all of its genes.
C
A phenotype is solely determined by an organism's genetic makeup, without any influence from the environment.
D
A phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.
Verified step by step guidance1
Understand the definition of phenotype: A phenotype refers to the observable physical or biochemical characteristics of an organism.
Recognize that a phenotype is influenced by both genetic factors and environmental conditions.
Differentiate between phenotype and genotype: Genotype is the genetic makeup of an organism, while phenotype is the expression of these genes as influenced by the environment.
Evaluate the given statements: The first two options incorrectly define phenotype as related to genes only, which is actually the definition of genotype.
Identify the correct statement: The correct definition of phenotype includes both genetic and environmental influences, as stated in the last option.
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