Biology unit5

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Across
  1. 2. Used to organize dna to fit in the nucleus, together with dna makes up chromatin
  2. 4. Gene mutation - when a base is substituted - changes only 1 amino acid
  3. 5. Replicating strand of dna that adds nucleotides moving toward helicase
  4. 7. Organelle where proteins are made
  5. 8. Single stranded nucleic acid used by cells, has bases a, u, g, and c, types include mrna, trna, and rna
  6. 10. 3 letter section of mrna that codes for an amino acid
  7. 12. Section of a gene that codes for protein
  8. 13. Enzyme used to unzip the dna molecule during dna replication
  9. 15. Replicating strand of dna that adds nucleotides moving away from helicase
  10. 16. Monomer of proteins - these are carried by tra molecules during translation
  11. 20. Section of dna that codes for a protein, has introns and exons - passed from parents to offspring
  12. 21. 2nd step of protein synthesis, takes place at a ribosome and uses tra molecules to assemble amino acids into proteins
  13. 22. Refers to dna and histone proteins that make up chromosomes
  14. 23. Type of mutation that changes whole sections of a chromosome by adding, deletion, inverting, or moving sections
  15. 24. Type of mutation that only affects one gene by substituting, adding, or deleting bases
  16. 26. Double stranded nucleic acid that has all genetic material, bases include a, t, g, and c, located in the nucleus
  17. 27. Strand of rna created during transcription - each 3-letter section is called a codon
Down
  1. 1. Section of a gene between exons - does not code for proteins, "junk"
  2. 3. Segment of newly formed dna on the lagging strand, connected together by ligase during dna replication
  3. 6. Macromolecule made of amino acids - used for enzymes, transport, and cell structures
  4. 9. Making a copy of dna, occurs during the s phase of interphase
  5. 11. Monomer of nucleic acids - made of a sugar, phosphate, and nitrogen base
  6. 14. 1st step of protein synthesis, takes place in the nucleus and creates a strand of mrna
  7. 17. 3 letter section of tra that matches to a codon of mrna
  8. 18. Gene mutation - when a base is added or deleted and changes all amino acids after the mutation
  9. 19. Part of a nucleotide along with a 5 carbon sugar and phosphate group
  10. 25. Type of rna used during translation, carries the amino acid and matches up with the mrna codon