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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. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site






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






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






4. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits






5. Less condensed - transciptionally active=eu truly transcobed






6. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances






7. Nucleotide excision repair - Base Excision repair - Mismath repair






8. Antifungal - act on microtubules






9. Elastase






10. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






11. Type III






12. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.






13. Greater melting temperature lower fluidity






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






15. Base + ribose






16. Bind 50S blocking translocation






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






18. 1P blocked by chloramphenicaol and macrolide






19. Change resulting in early stop codon






20. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






21. Binds 50S blocking translocation






22. Exocytose procollagen into extracellylar sace






23. Substituting a purine for a pyrimdine or vice versa






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






25. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.






26. Codes for formyl methionine (f - Met)






27. Inhibits dihydrofolate reductase down thymine






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






29. VItamin C






30. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)






31. Intervening noncoding segments of DNA






32. Bm - kidney - ears and eyes






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






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






35. Capping on 5 prime end (7 methylguanosine) -






36. 1P (blocked by tetracycline)






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






38. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y






39. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA






40. Contain the actual genetic information coding for protein






41. P53 and RB normally inhibit g1 to S progression






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






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






44. Anit helminth - act on microtubules






45. Non homologous end joining






46. Muscle






47. Anti breast cancer - acts on mts






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






49. Inhibits thymidylate synthase down thymine






50. 5 prime to 3 prime