Multiple Choice
How can a change in genotype affect phenotype?
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13. Mendelian Genetics
Genotype vs. Phenotype
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Which of the following is not a phenotype?
A
Blue eye color
B
Height of a plant
C
Freckles on skin
D
Bb genotype
Verified step by step guidance1
Understand the definition of a phenotype: A phenotype is the set of observable characteristics or traits of an organism, such as its morphology, development, biochemical or physiological properties, and behavior.
Identify the examples given: Blue eye color, height of a plant, and freckles on skin are all observable traits, which means they are phenotypes.
Understand the definition of a genotype: A genotype refers to the genetic makeup of an organism; it is the set of genes that it carries.
Recognize that 'Bb genotype' refers to the genetic composition (alleles) of an organism, not an observable trait.
Conclude that 'Bb genotype' is not a phenotype because it describes the genetic information rather than an observable characteristic.
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