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First Aid: Biochemistry Molecular

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Base + ribose






2. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)






3. Close to - far from or even within (in an intron) the gene whose expression it regulates






4. Inhibits 50S peptidyl transferase






5. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex






6. Inhibits thymidylate synthase down thymine






7. Type III






8. Inhibits ribonucleotide reductase






9. Bm - kidney - ears and eyes






10. GTP






11. 4 high enrgy bonds






12. Brings together 2 ends of DNA fragments no requirement for homology






13. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers






14. Epithelial cells






15. UGA - UAG - UAA






16. Methyl THYmine has a meTHYl






17. AUG inAUGurates protein synthesis






18. Attachment of ubiquitin to defective proteinds to tag them for breakdown






19. Regulatory proteins that control cell cycle events; phase specific; activated CDKs






20. Contain the actual genetic information coding for protein






21. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






22. 9+2 arrangement of microtubules -






23. ATP






24. Has enough energy to created the peptide bond






25. Anti breast cancer - acts on mts






26. P53 and RB normally inhibit g1 to S progression






27. Odd 30S plus 50 S=70S






28. Accurate base pairing is required only in the first 2 nucleotide positions of an mRNA so codons differing ht e3rd wobble psoition may code for the same tRNA/amino acid code






29. ATP- AMP (2 phosphoanhydride bonds)






30. HS1 - HSB - H2 - H4






31. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine






32. Proline - glycine






33. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






34. Introns stay In the nucleus whereas EXons EXit and are EXpressed






35. Unattached to any membrane; site of cytosolic and organeller prtoeins






36. Prevents stranges from reannealing






37. Ketone






38. Same aa often base change in 3rd position of codon






39. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)






40. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)






41. 1P (blocked by tetracycline)






42. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed






43. Inhibits bacterials dihydrofolate reducatese down thymine






44. Elastase






45. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA






46. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






47. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments






48. H1






49. Ribonucleotide reductase






50. The 5prime end (energy for the bond)