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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. Hn RNA






2. Binds 50S blocking translocation






3. Read froma fixed starting point as a continous sequenecs of bases






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






5. DNA And RNA synthesized in the 5-3 direction






6. Alpha 1 antitrypisn






7. Seals






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






9. Contain the actual genetic information coding for protein






10. Unwinds DNA template at replication fork






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






12. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity






13. Elastase






14. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy






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






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






17. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap






18. Anterograde to microtubule






19. 9+2 arrangement of microtubules -






20. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






22. Prevents stranges from reannealing






23. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles






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






25. Retrograde to microtubules






26. Non homologous end joining






27. Prophas - metaphase - anaphase telophase






28. 1P blocked by chloramphenicaol and macrolide






29. Greater melting temperature lower fluidity






30. Bind 50S blocking translocation






31. Base + ribose






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






33. UGA - UAG - UAA






34. Site where negative regulators bind






35. Antifungal - act on microtubules






36. Exocytose procollagen into extracellylar sace






37. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints






38. Antigout - acts on mts






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






40. Inhibits thymidylate synthase down thymine






41. Muscle






42. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus






43. MRNA






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






45. Phosphorylation - glycosloation - hyderoxylation






46. Intervening noncoding segments of DNA






47. Has enough energy to created the peptide bond






48. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets






49. Completed protein is released from ribosme through simple hydrolosis and dissociates






50. 5 prime to 3 prime