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Answer: Polygenic inheritance.
Explanation: Some characteristics are polygenic, meaning that they're controlled by a number of different genes. In polygenic inheritance, traits often form a phenotypic spectrum rather than falling into clear-cut categories.
Answer: The apothecary affects the story by giving Romeo the deadly poison and not giving Romeo the letter makes him distraught.
Explanation:
Plot-<span>the main events of a play, novel, movie, or similar work, devised and presented by the writer as an interrelated sequence.
Exposition-</span>Exposition<span> is a </span>literary<span> device used to introduce background information about events, settings, characters etc. to the audience or readers. </span>