Biology Unit 3

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Across
  1. 3. the enzyme that links fragments of DNA
  2. 5. synthesizes RNA from DNA template through transcription
  3. 8. Each gamete gets one random gene copy
  4. 11. Pairs of homologous chromosomes that didn’t separate normally during meiosis
  5. 14. Having two identical alleles
  6. 16. Having two different alleles
  7. 17. a mutation where a one base pair is changed
  8. 18. Mutations that affect whole chromosomes or genes instead of individuals
  9. 20. a segment of DNA or RNA that interrupts the gene sequence
Down
  1. 1. helps translate mRNA sequence
  2. 2. a complete set of chromosomes
  3. 4. A type of point mutation in which shifts the genetic message through either insert or deleting a nucleotide
  4. 6. The enzyme that forms new nucleic acid molecules
  5. 7. a segment of DNA or RNA that codes for proteins
  6. 9. helps form parts of ribosomes
  7. 10. the haploid set of chromosomes in a gamete
  8. 12. A condition where an organism more than 2 complete sets of chromosomes
  9. 13. the enzyme that unzips DNA
  10. 15. small segments of DNA formed during synthesis of the lagging strand
  11. 19. carries protein info from nucleus to the cytoplasm