biology unit 5

1234567891011121314151617181920
Across
  1. 1. 3' to 5' replicated in Okazaki fragments
  2. 3. five-carbon sugar found in RNA
  3. 4. purine base that pairs with cytosine
  4. 5. nucleotide that stores genetic information, creates DNA and RNA
  5. 7. a random error in gene replication that leads to a change
  6. 8. where the cell’s chromosomes are found: controls cell
  7. 10. basic structural unit of DNA
  8. 13. pyrimidine base, forms with adenine
  9. 16. a condition in which an organism has extra sets of chromosomes
  10. 17. a purine base, forms pair with thymine
  11. 19. a mutation affecting only one or very few nucleotides in a gene sequence
  12. 20. 5' to 3' replicated in one chunk
Down
  1. 2. a permanent alteration in the DNA sequence that makes up a gene
  2. 6. site of protein synthesis in the cell
  3. 9. a pyriidine base, forms with guanine
  4. 11. substance inside a chromosome that consists of DNA tightly coiled around proteins
  5. 12. involves the insertion or deletion of a nucleotide in the DNA sequence
  6. 14. a five-carbon sugar that is a component of DNA nucleotides
  7. 15. a pyrimidine base, paired with adenine
  8. 18. enzyme that unwinds double-stranded DNA by breaking hydrogen bonds