Multiple Choice
What is an individual’s actual genetic make-up called?
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13. Mendelian Genetics
Genotype vs. Phenotype
Multiple Choice
Which of the following statements about the phenotypic expression of genotypes is correct?
A
Phenotypic expression can be influenced by environmental factors.
B
Phenotypic expression is solely determined by the genotype.
C
Phenotypic expression is not affected by mutations in the genotype.
D
All individuals with the same genotype will have identical phenotypes.
Verified step by step guidance1
Understand the concept of phenotype: Phenotype refers to the observable characteristics or traits of an organism, such as its morphology, development, biochemical properties, and behavior.
Recognize the role of genotype: Genotype is the genetic makeup of an organism, consisting of the alleles inherited from its parents. It provides the blueprint for potential phenotypic traits.
Consider environmental influences: Environmental factors such as temperature, nutrition, and exposure to chemicals can affect the expression of phenotypic traits, even if the genotype remains unchanged.
Evaluate the impact of mutations: Mutations in the genotype can lead to changes in the phenotype, as they may alter the function or expression of genes.
Acknowledge genetic variability: Even individuals with the same genotype can exhibit different phenotypes due to environmental influences and other factors such as epigenetic modifications.
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