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






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






3. Base + ribose






4. Y shaped region along DNA template where leading and lagging strands are syntehsized






5. 2 H bonds greater GC content greater melting point






6. Alpha 1 antitrypisn






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






8. Genetic code is conserved throughout evolution






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






10. Change resulting in early stop codon






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






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






13. ATP






14. Inhibits ribonucleotide reductase






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






16. Remain in G0 regenerate from stem cells






17. GTP






18. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)






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






20. H1 string






21. Unwinds DNA template at replication fork






22. Seals






23. MRNA






24. Uracil






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






26. Inhibits dihydrofolate reductase down thymine






27. Type III






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






29. A malfunction of mismatch repair (MUt L etc..)






30. Has enough energy to created the peptide bond






31. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






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






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






34. Inhibits thymidylate synthase down thymine






35. Contain the actual genetic information coding for protein






36. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






38. Made from IMP precursor






39. Inhibits bacterials dihydrofolate reducatese down thymine






40. Bm - kidney - ears and eyes






41. 1P blocked by chloramphenicaol and macrolide






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






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






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






45. Inhibits 50S peptidyl transferase






46. Does not






47. Greater melting temperature lower fluidity






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






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






50. Muscle