Ch. 16 Basic Genetics Vocab

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Across
  1. 3. An organism that has two identical alleles for a specific gene
  2. 5. Very long molecule which are made of two strands of nucleic acids arranged in a double helix
  3. 7. The genetic makeup of an organism
  4. 10. To describe an allele which is being masked by another
  5. 11. An organism that has different alleles for a specific gene
  6. 12. Two identical halves of a replicated chromosome
  7. 13. A segment of DNA which determine single physical appearance and body function
Down
  1. 1. To describe a pair of chromosome (one from each parent) which contain the same genes
  2. 2. The observable physical or biochemical characteristics of an organism
  3. 4. Protein molecules around which DNA is tightly coiled to form chromosomes
  4. 6. Different forms of a gene that control the same character but result in different expression
  5. 8. To describe an allele which masks the expression of another
  6. 9. The region of a chromosome where the two sister chromatids are joined together