Biology

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Across
  1. 2. variations of genes.
  2. 3. having different gene versions from each parent.
  3. 4. the offspring of two different species or varieties.
  4. 7. structures in cells containing genetic material.
  5. 8. an organism's genetic composition.
Down
  1. 1. the outward appearance of an organism, influenced by its genes and environment.
  2. 3. having two identical alleles for a particular gene, one inherited from each parent.
  3. 5. a gene variant that influences the phenotype even if there's only one copy.
  4. 6. a gene variant that shows its effect only when both copies are present.
  5. 8. a unit of DNA that holds instructions for building and maintaining an organism.