Genetics Review

Edit Answers
1234567891011121314151617181920212223242526272829303132
Across
  1. 2. In RNA, this base replaces Thymine
  2. 4. r in rRNA
  3. 7. the genes an individual has
  4. 9. __________ Inheritance is when a trait is controlled by more than one pair of genes
  5. 11. When both genes are expressed or show up at the same time ex. Red x White = Red and White
  6. 12. The enzyme that adds new nucleotides to DNA
  7. 15. m in mRNA
  8. 17. diagram used to predict the outcome of a particular cross or breeding
  9. 19. always matches with Cytosine in DNA
  10. 21. always matches with Adenine in DNA
  11. 22. When mRNA is used to create proteins from amino acid codons
  12. 25. genes that are covered or masked by dominant genes
  13. 28. rungs of DNA are made up of nitrogenous __________
  14. 29. always matches with Guanine in DNA
  15. 30. genes that cover or mask the expression of recessive genes
  16. 31. t in tRNA
  17. 32. Austrian Monk who studied genetics using pea plants
Down
  1. 1. Building block of DNA made up of a pentose sugar, phosphate, and nitrogenous base
  2. 3. two genes are different ex.Tt
  3. 5. __________ Dominance occurs when the heterozygous offspring is a mix of the two original phenotypes ex. Red x White = Pink
  4. 6. Both genes are the same ex.TT
  5. 8. When a sequence of DNA is copied into mRNA
  6. 10. the structure of DNA discovered by Watson and Crick
  7. 13. type of bond between base pairs
  8. 14. The physical characteristics an individual has
  9. 16. the side rails of DNA are made up of alternating sugar and _____________
  10. 18. Process of producing two identical DNA strands from one parent strand of DNA
  11. 20. When one pair of genes prevents or blocks the expression of another pair of genes
  12. 23. A cluster of histones with its wrapped DNA is called a ______________
  13. 24. The enzyme that "unzips" DNA
  14. 26. always matches with Thymine in DNA
  15. 27. DNA is wrapped around proteins called __________