Shashish's genetics crossword

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Across
  1. 2. A genotype with one dominant and one recessive allele
  2. 3. deoxyribonucleuic acid
  3. 7. An uppercase or lowercase letter that combines with another to make a genotype.
  4. 8. thread structures that make DNA
  5. 9. An allele that is lowercase and is not shown when a dominant allele is present.
Down
  1. 1. An allele that is uppercase and is always shown as a phenotype.
  2. 4. An organisms physical traits.
  3. 5. The two alleles that determine a trait in an organism.
  4. 6. A genotype with two of the same alleles