Cells and DNA

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Across
  1. 1. cells with a half set of DNA
  2. 4. cell division process that makes two identical daughter cells
  3. 6. the physical expression of a trait
  4. 7. cell division process that makes four genetically different cells
  5. 10. two of the same alleles for the same trait (ex: 2 dominants)
  6. 12. organelle that releases sugar's stored energy
  7. 15. cells with a complete set of DNA
  8. 16. _________ squares help us predict the genotypes/phenotypes of tffspring of two parents
  9. 17. a ________ allele will only show when there is no dominant allele to mask it
  10. 18. one version of a gene
  11. 19. what replaces thymine in mRNA
  12. 20. _______ bonds hold the two single strands of DNA together
Down
  1. 2. a ________ allele will always show when present in a genotype
  2. 3. organelle that make proteins
  3. 5. _______ dominance is the inheritance pattern where the phenotype is a blend of the two
  4. 8. organelle that packages molecules inside the cell
  5. 9. the nitrogen base that pairs with cytosine
  6. 11. Watson and this man figured out the structure of DNA
  7. 13. two different alleles for the same trait (ex: 1 dominant & 1 recessive)
  8. 14. 1 sugar + 1 phosphate + 1 nitrogen base