inheritance puzzle

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Across
  1. 3. variant tends to override the other variant
  2. 5. mothers carry it, and the son shows it
  3. 7. both alleles are the same
  4. 8. Two copies to show
Down
  1. 1. dominant - dad gives it all to daughters but never the sons.
  2. 2. organisms physical qualities
  3. 4. affected person usually has an affected parent
  4. 6. mothers pass it down to their children