Tanika is writing a research paper about the basics of genetics for her science class.Which nonfiction text would be the best source for her paper?

A research paper about the basics of genetics needs a reliable, relevant source. “What Is a Gene?” is directly about genetics and was written for the US National Library of Medicine, a credible source. The blog is written by an amateur, the advertisement is intended to promote a product, and the census-records article is about family history rather than genetics.

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