Genetics and heredity

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Across
  1. 3. a particle in a cell that helps synthesize proteins
  2. 4. type human blood cells that have the same antigens
  3. 5. cell division that produces reproductive cells
  4. 6. part of DNA controlling physical characteristics and growth
  5. 8. allele an allele that produces its characteristic phenotype only when its paired allele is identical
  6. 11. allele an allele that is almost always expressed, even if only one copy is present.
  7. 14. material that carries genetic information in a cell
  8. 15. traits are attributable to genotypic variation in a person's DNA sequence
  9. 17. a specialized part of a cell; analogous to an organ
  10. 18. observable characteristics produced by genes and environment
  11. 19. having dissimilar alleles at corresponding chromosomal loci
Down
  1. 1. part of a cell involved in energy production
  2. 2. a threadlike strand of DNA that carries genes
  3. 6. expression conversion of the information encoded in a gene first into messenger RNA and then to a protein
  4. 7. traits are attributable to genotypic variation in a person's DNA sequence.
  5. 9. DNA sequence of a gene's DNA that transcribes into protein structures
  6. 10. a change or alteration in form or qualities
  7. 12. any of the forms of a gene that can occupy the same locus
  8. 13. of or pertaining to a recession
  9. 16. having identical alleles at corresponding chromosomal loci