Genetics Vocabulary

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Across
  1. 4. Loss of fragment or loss of nucleotide
  2. 6. Portion of a chromosome is duplicated
  3. 8. Alternative form of a gene
  4. 10. Organism has a full set of extra chromosomes
  5. 12. Blending inheritance, two contrasting alleles contribute to the phenotype
  6. 15. Genetic makeup
  7. 16. Error in meiosis where homologous chromosomes fail to separate
  8. 19. One half of a duplicated chromosome
  9. 21. Change in the nucleotide sequence of a gene
  10. 23. Two must be present to determine phenotype, if not, the trait is masked
  11. 24. Unit of hereditary information
  12. 26. One maternal and one paternal pair of chromosomes
Down
  1. 1. One or more chromosomes have extra copies or are deficiennt
  2. 2. Three or more forms of a gene that code for a single trait
  3. 3. If the allele is present, the organism will die
  4. 5. Order of genes is reversed
  5. 7. Organism's physical appearance
  6. 9. Will determine phenotype if just one is present
  7. 11. Two different alleles code for a trait
  8. 13. One allele is totally dominant over the other
  9. 14. Both alleles are expressed
  10. 17. Crossing an unknown individual with homozygous recessive to determine other genotype
  11. 18. Mutation where a fragment of one chromosome attaches to a nonhomologous chromosome
  12. 20. Pairing of homologous chromosomes
  13. 22. Randomly inactivated x chromosome in females
  14. 25. Two of the same alleles code for a trait