Genetics

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Across
  1. 4. The genetic makeup of an organism.
  2. 5. Differences in traits among individuals of the same species.
  3. 6. The observable physical or biochemical characteristics of an organism.
Down
  1. 1. A trait that is masked by a dominant trait.
  2. 2. The passing of traits from parents to offspring.
  3. 3. A trait that masks the expression of a recessive trait.