Traits and reproduction

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Across
  1. 3. Genes and chromosomes are made of…
  2. 5. To receive a feature or trait from a parent
  3. 6. How something works
  4. 8. version. Different or specific forms of a gene
Down
  1. 1. When a male and female cells combine
  2. 2. All members of a species have
  3. 4. Holds lots of genes
  4. 7. An instruction for making a protein molecule.