genetics crossword

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Across
  1. 4. a circumstance where the expression of one gene is affected by the expression of one or more independently inherited genes.
  2. 6. one whose phenotype is influenced by more than one gene.
  3. 10. The situation in which both alleles of a heterozygote influence the phenotype.
  4. 13. the genetic constitution of an individual organism.
Down
  1. 1. having two identical alleles of a particular gene or genes.
  2. 2. a type of allele which will not be manifested in an individual unless both of the individual's copies of that gene have that particular genotype.
  3. 3. a genetically determined characteristic
  4. 5. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
  5. 7. unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
  6. 8. having two different alleles of a particular gene or genes.
  7. 9. the relationship between two versions of a gene.
  8. 11. a relationship between two versions of a gene.
  9. 12. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
  10. 13. the purposeful mating of two individuals resulting in the combination of genetic material in the offspring.