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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. CUT 1 ring Cut the Py






2. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap






3. ATP- AMP (2 phosphoanhydride bonds)






4. Inhibits by binding to the potassium side






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






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






7. Neurons






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






9. Responsible for the accuracy of amino acid selection






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






11. 2 H bonds greater GC content greater melting point






12. Does not






13. Create a nick in the helix to relieve supercoils created during replication






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






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






16. Accurate base pairing is required only in the first 2 nucleotide positions of an mRNA so codons differing ht e3rd wobble psoition may code for the same tRNA/amino acid code






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






18. Non homologous end joining






19. 3 H bonds






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






21. Muscle






22. Site where negative regulators bind






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






24. Prophas - metaphase - anaphase telophase






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






26. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets






27. Microvilli - muscle contraction - cytokinesis - adhering juntions






28. Uracil






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






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






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






32. Intervening noncoding segments of DNA






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






34. Remain in G0 regenerate from stem cells






35. 4 high enrgy bonds






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






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






38. Made from orogate precuror with PRPP added later






39. Anterograde to microtubule






40. Methyl THYmine has a meTHYl






41. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






42. Antigout - acts on mts






43. 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






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






45. ATP






46. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers






47. Tansport cellular cargo toward opposite ends of microtubule tracks






48. Bind 50S blocking translocation






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






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