A rare tropical plant was found to have medicinal properties. A search was conducted to find other plants that are closely related to the rare plant. Which combination of characteristics would best identify the plant most closely related to the original one?
1
shape of seeds, number of flower petals, leaf pigments
2. number of flower petals, positive reaction to a specific enzyme
3
leaf pigments, sequence of DNA bases, positive reaction to a specific enzyme
presence of DNA bases, internal stem structure, shape of seeds