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






2. Retrograde to microtubules






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






4. 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






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






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






7. Remain in G0 regenerate from stem cells






8. Has enough energy to created the peptide bond






9. Non homologous end joining






10. Cyclin depndent kinases; consituative and inactive






11. Hydroxy proline and hydroxylysine






12. Seals






13. Odd 30S plus 50 S=70S






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






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






16. P53 and RB normally inhibit g1 to S progression






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






18. Substituting a pyramidine for a pyrimadine






19. Connective tissue






20. 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






21. Inhibits bacterials dihydrofolate reducatese down thymine






22. Antigout - acts on mts






23. HS1 - HSB - H2 - H4






24. Less condensed - transciptionally active=eu truly transcobed






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






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






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






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






29. Substituting a purine for a pyrimdine or vice versa






30. Does not






31. Unwinds DNA template at replication fork






32. Blocks denovo purine synthesis






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






34. ATP






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






36. Type III






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






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






39. Inhibits thymidylate synthase down thymine






40. Bind 50S blocking translocation






41. Anterograde to microtubule






42. Microvilli - muscle contraction - cytokinesis - adhering juntions






43. Inhibits 50S peptidyl transferase






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






45. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






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






48. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA






49. Intervening noncoding segments of DNA






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