Environmental Effects on Phenotype

AP Biology· difficulty 3/5

Variable expressivity means

A
$All individuals with the same genotype display an identical phenotypic outcome$
B
$Both alleles at a gene locus are silenced through epigenetic modifications$
C
$Individuals with the same genotype show different degrees / forms of the phenotype$
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D
$The genotype of an individual changes spontaneously over the course of a lifetime$

Explanation

Same genotype, different phenotype severity (e.g., neurofibromatosis can range from mild skin spots to severe tumors).

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