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Biology, 17.03.2020 20:08 abdulalghazouli
Flower color in Hydrangea macrophylla plants is thought to be determined primarily by soil conditions rather than by inherited differences. Which of the following will provide the most direct evidence that flower color in Hydrangea macrophylla is due primarily to soil conditions?
a. comparing DNA sequence information for Hydrangea macrophylla to DNA sequence information for a different species of flowering plant
b. performing a genetic cross between a pink-flowered plant and a blue-flowered plant and then determining the ratio of phenotypes in the offspring
c. growing cuttings from the same Hydrangea macrophylla plant under controlled conditions that vary only with regard to soil pH
d. analyzing fossilized remains of an ancestral species that grew in geographic areas similar to the habitats of modern Hydrangea macrophylla.
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