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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. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)






2. Antigout - acts on mts






3. Inhibits dihydrofolate reductase down thymine






4. 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






5. Splicing out of introns






6. Muscle






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






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






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






10. H1






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






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






13. Retrograde to microtubules






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






15. Anti breast cancer - acts on mts






16. Hydroxy proline and hydroxylysine






17. Genetic code is conserved throughout evolution






18. Each codon specifies only 1 amino acid






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






20. Exocytose procollagen into extracellylar sace






21. Anti cancer - act on microtubules






22. GTP






23. 5 prime to 3 prime






24. Poly adenylation






25. Cyclin depndent kinases; consituative and inactive






26. 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






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






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






29. Inhibits thymidylate synthase down thymine






30. VItamin C






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






32. Codes for formyl methionine (f - Met)






33. Less condensed - transciptionally active=eu truly transcobed






34. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site






35. Same aa often base change in 3rd position of codon






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






37. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds






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






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






40. Bm - kidney - ears and eyes






41. Does not






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






43. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility






44. 4 high enrgy bonds






45. Non homologous end joining






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






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






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






49. Phosphorylation - glycosloation - hyderoxylation






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