AP Biologyeasymcq1 pt
Identical twins raised apart differ in height. The most likely explanation is
A.environmental influence on a polygenic trait
B.different genotypes
C.a mutation in one twin's height genes
D.errors in height measurement only
Explanation
Core Concept
Same genotype, different nutrition and environment → different height. Polygenic traits are especially responsive to environmental input.
Correct Answer
Aenvironmental influence on a polygenic trait
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