Which of the following biological phenomena best exemplifies how environmental factors can modify an organism's phenotype without altering its genotype?

A) Hydrangea macrophylla producing blue flowers in acidic soil and pink flowers in alkaline soil despite sharing identical genetic backgrounds

B) A point mutation occurring in a hemoglobin coding sequence that results in sickle-cell anemia

C) Incomplete dominance producing pink petals in the heterozygous offspring of red and white snapdragons

D) Independent assortment of maternal and paternal chromosomes generating diverse allele combinations during meiosis

Environmental effects on phenotype Knowledge-Based Practice

Biology · Heredity · Biology · Non-Mendelian Genetics

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Heredity · Biology

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