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First Aid: Biochemistry Molecular

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Does not






2. Hydroxy proline and hydroxylysine






3. Condensed - transciptionally inactive HC- Highly condensed






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






5. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






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






7. Muscle






8. HS1 - HSB - H2 - H4






9. Inhibit formation of the initation complex and cause misreading of mRNA






10. Tansport cellular cargo toward opposite ends of microtubule tracks






11. Less condensed - transciptionally active=eu truly transcobed






12. Lysine/hydroxylysine and combines to form collagen






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






14. Alpha 1 antitrypisn






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. Antigout - acts on mts






18. ATP- AMP (2 phosphoanhydride bonds)






19. Substituting a pyramidine for a pyrimadine






20. 1P (blocked by tetracycline)






21. 2 H bonds greater GC content greater melting point






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






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






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






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






26. The 3 prime end






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






28. Prophas - metaphase - anaphase telophase






29. Anti breast cancer - acts on mts






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






31. Contain the actual genetic information coding for protein






32. ATP






33. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






34. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






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






36. 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






37. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly






38. Anti cancer - act on microtubules






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






40. CUT 1 ring Cut the Py






41. 1P blocked by chloramphenicaol and macrolide






42. Remain in G0 regenerate from stem cells






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






44. Hn RNA






45. Change resulting in early stop codon






46. Splicing out of introns






47. Prevents stranges from reannealing






48. Phosphorylation - glycosloation - hyderoxylation






49. Antifungal - act on microtubules






50. P53 and RB normally inhibit g1 to S progression