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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. Inhibits by binding to the potassium side






2. Specific glycosylases recognize and remove damaged bases - AP endonuclease cuts DNA at pyrimidne site - empty sugar is removed and the gap is filled and resealed






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






4. Bind 50S blocking translocation






5. HS1 - HSB - H2 - H4






6. Inhbits RNA pol II (found in death cap mushrooms)






7. Changed aaconservative - new aa is similar in chemical structure






8. Makes an RNA primer on which DNA polymerase II can initiate replication






9. H1






10. 9+2 arrangement of microtubules -






11. More than 1 codon may code for the same amino acid






12. Neurons






13. Anit helminth - act on microtubules






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






15. Microvilli - muscle contraction - cytokinesis - adhering juntions






16. Cyclin depndent kinases; consituative and inactive






17. Phosphorylation - glycosloation - hyderoxylation






18. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture






19. Prevents stranges from reannealing






20. Create a nick in the helix to relieve supercoils created during replication






21. 1P blocked by chloramphenicaol and macrolide






22. 3 H bonds






23. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






24. 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)






25. Does not






26. A malfunction of mismatch repair (MUt L etc..)






27. Bind 30S subunit preventing attachment of aminoacyl - tRNA






28. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)






29. Tansport cellular cargo toward opposite ends of microtubule tracks






30. 1P (blocked by tetracycline)






31. 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






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






33. P53 and RB normally inhibit g1 to S progression






34. Epithelial cells






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






36. 1) primary transcript combines with snRNPs and other proteins to form spliceosome 2) lariat shaped intermediate is generated 3) Lariat is removed and released to precisely join 2 exons






37. 4 high enrgy bonds






38. Site where negative regulators bind






39. MRNA






40. CUT 1 ring Cut the Py






41. Muscle






42. (A - G) 2 rings Pure As Gold






43. Made from IMP precursor






44. Must be both activated and inactivated for cell cycle to progress






45. G1 - S - G2 - Mitosis






46. UGA - UAG - UAA






47. Ribonucleotide reductase






48. 5 prime to 3 prime






49. Methionine - which may be removed before translation is completed






50. Anti cancer - act on microtubules