Biology

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Across
  1. 2. organelle where proteins are made
  2. 4. 3 letter section of tRNA that matches to a codon of mRNA
  3. 7. single stranded nucleic acid used by cells has bases a, u, g, c
  4. 8. monomer of proteins made of sugar, phosphate, and nitrogen base
  5. 9. gene mutation when a base is added or deleted and it changes all amino acids after it
  6. 12. refers to DNA and histone proteins that make up chromosomes
  7. 13. enzyme used to unzip the DNA molecule during DNA replication
  8. 14. gene mutation when a base is substituted changes only 1 amino acid
  9. 16. making a copy of dna occurs during the s phase of interphase
  10. 17. macromolecule made of amino acids used for enzymes transport and cell structure
  11. 19. used to organize dna to fit in the nucleus, together with dna makes up chromatin
  12. 21. segment of newly formed dna on the lagging strand connected together by ligase during dna replication
Down
  1. 1. 3 letter sequence on mRNA that codes for an amino acid
  2. 3. section of a gene that codes for a protein
  3. 5. part of a nucleotide along with a 5 carbon sugar and phosphate group
  4. 6. type of mutation that only effects 1 gene by adding, substituting or deleting bases
  5. 10. monomer of a protein carried by tRNA molecules during transcription
  6. 11. replicating strand of dna that adds nucleotides moving away from helicase
  7. 15. type of rna used during translation carries the amino acid and matches up with the mRNA codon
  8. 18. replicatin strand of dna that adds nucleotides moving towards helicase
  9. 20. section of a gene between exons does not code for proteins