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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. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






2. Inhibits ribonucleotide reductase






3. Remain in G0 regenerate from stem cells






4. Antigout - acts on mts






5. Change resulting in early stop codon






6. Cyclin depndent kinases; consituative and inactive






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






8. Each codon specifies only 1 amino acid






9. Epithelial cells






10. Prevents stranges from reannealing






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






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






13. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)






14. Non homologous end joining






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






16. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)






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






18. Neurons






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






20. Has enough energy to created the peptide bond






21. P53 and RB normally inhibit g1 to S progression






22. Even 40S 60S =80S






23. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends






24. Genetic bone disorder (brittle bone disease) type 1 colalgen - fractures (during birth) 2) Blue sclerae 3) hearing loss 4) dental imperfections 1:10000 may be confused with child abuse






25. The 3 prime hydroxyl of the nascent chain is the target






26. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






27. Hn RNA






28. Poly adenylation






29. Anti breast cancer - acts on mts






30. UGA - UAG - UAA






31. Made from IMP precursor






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






33. ATP






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






35. Less condensed - transciptionally active=eu truly transcobed






36. H1






37. Substituting a purine for a pyrimdine or vice versa






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






39. 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






40. Genetic code is conserved throughout evolution






41. Proline - glycine






42. Intervening noncoding segments of DNA






43. Alpha 1 antitrypisn






44. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






45. Connective tissue






46. Different exons can be combined to make nique protiens in different times






47. Anti cancer - act on microtubules






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






49. Stretch of DNA that alters gene expression by binding transcription factors






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