definitions biology

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Across
  1. 4. the presence of two different alleles at a particular gene
  2. 5. cell division that ends with 2 daughter cells
  3. 6. specific characteristic of a person
  4. 9. the allele that is shown
  5. 10. cell division that ends with 4 daughter cells
  6. 12. a trait that is expressed only when the genotype is homozygous
  7. 13. a diagram of family history that uses symbols
Down
  1. 1. one of two are more DNA sequences
  2. 2. the hybrid of two individuals with homozygous genotypes which result in the opposite phenotype for a certain genetic trait
  3. 3. a tool that helps to show all possible allele combinations
  4. 4. the presence of two identical alleles at a particular gene
  5. 7. basic unit of heredity that is passed from parent to child
  6. 8. how pairs of gene variants are separated into reproductive cells
  7. 11. between two organisms which are identical hybrids for two traits