Biology Unit 5 Vocabulary Review

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Across
  1. 5. 3 letter section of tRNA that matches to a codon of mRNA
  2. 7. 1st step in protein synthesis,takes place in the nucleus and creates a strand of mRNS
  3. 11. Replicating strand of DNA that adds nucleotides moving towards the helicase
  4. 12. Double strand nucleic acid that has all genetic material, bases include a,t,g,c located in the nucleus
  5. 14. Refers to DNA and histone proteins that make up chromosomes
  6. 15. Section of Dna that codes for a protein has introns and exons-passed from parents to offsprings
  7. 17. Type of RNA used during translation carries amino acids and matches up with mRNA codons
  8. 18. Enzyme used to unzip the DNA molecule during DNA replication
  9. 20. 2nd step of protein synthesis, takes place at a ribosome and uses tRNA molecules to assemble amino acids into proteins
Down
  1. 1. Section of a gene that codes for proteins
  2. 2. 3 letter section of mRNA that codes for an amino acid
  3. 3. Single stranded nucleic acid used by cells has bases a,u,g,c types include mRNA,tRNA,and rRNA
  4. 4. Used to organize DNA to fit in the nucleus, together with DNA makes up chromatin
  5. 6. Strand of RNA created during transcription-each 3 letter section is called a codon
  6. 8. Macromolecule made of amino acid used for enzymes,transport,and cell structure
  7. 9. Replicating strand of DNA that adds nucleotides moving away from the helicase
  8. 10. Organelle where proteins are made
  9. 13. Monomer of nucleic acids made of a sugar,phosphate, and nitrogen base
  10. 16. Type of mutation that only affects one gene by substituting,adding,or deleting bases
  11. 19. section of a gene between exons-does not code for proteins,"junk"