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