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






2. Tansport cellular cargo toward opposite ends of microtubule tracks






3. Anit helminth - act on microtubules






4. HS1 - HSB - H2 - H4






5. GTP






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






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






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






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






10. One codon AUG






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






12. Has enough energy to created the peptide bond






13. Anterograde to microtubule






14. 1P (blocked by tetracycline)






15. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






16. Epithelial cells






17. Substituting a purine for a pyrimdine or vice versa






18. Exocytose procollagen into extracellylar sace






19. Odd 30S plus 50 S=70S






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






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






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






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






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






25. Change resulting in early stop codon






26. Does not






27. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA






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






29. 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






30. The N to C






31. Commonly results in dramatic decrease in amount of gene transcribed






32. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus






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






34. Made from IMP precursor






35. Alpha 1 antitrypisn






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






37. Bind 50S blocking translocation






38. Even 40S 60S =80S






39. ATP- AMP (2 phosphoanhydride bonds)






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






41. Poly adenylation






42. Non homologous end joining






43. AUG inAUGurates protein synthesis






44. Cilia - glagella - mitotic spindle - neurons - centrioles






45. Antifungal - act on microtubules






46. Muscle






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






48. Prevents stranges from reannealing






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






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