Genetics terminology

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Across
  1. 4. A section of DNA that codes for a specific trait.
  2. 5. Having two different alleles for a particular gene.
  3. 6. The observable characteristics or traits of an organism.
Down
  1. 1. A different form or version of a gene.
  2. 2. The genetic makeup of an organism; the combination of alleles.
  3. 3. Having two identical alleles for a particular gene.