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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. Bm - kidney - ears and eyes






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






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






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






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






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






7. Change resulting in misreading of all nucleotides downstream - usually resulting in a truncated non functional protien






8. Made from orogate precuror with PRPP added later






9. GTP






10. Anti breast cancer - acts on mts






11. 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






12. AUG inAUGurates protein synthesis






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






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






15. UGA - UAG - UAA






16. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






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






18. P53 and RB normally inhibit g1 to S progression






19. Codes for formyl methionine (f - Met)






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






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






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






23. Ribonucleotide reductase






24. Seals






25. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)






26. Inhibits 50S peptidyl transferase






27. Remain in G0 regenerate from stem cells






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






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






30. Contain the actual genetic information coding for protein






31. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






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






33. Site where negative regulators bind






34. Inhibits dihydrofolate reductase down thymine






35. Inhibits bacterials dihydrofolate reducatese down thymine






36. Neuroglia






37. Ketone






38. One codon AUG






39. 4 high enrgy bonds






40. Antigout - acts on mts






41. Microvilli - muscle contraction - cytokinesis - adhering juntions






42. CCA AT 3 PRIME END






43. Antifungal - act on microtubules






44. Non homologous end joining






45. Unattached to any membrane; site of cytosolic and organeller prtoeins






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






47. Anit helminth - act on microtubules






48. Responsible for the accuracy of amino acid selection






49. G1 - S - G2 - Mitosis






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







Sorry!:) No result found.

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