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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. Site where negative regulators bind






2. Specific glycosylases recognize and remove damaged bases - AP endonuclease cuts DNA at pyrimidne site - empty sugar is removed and the gap is filled and resealed






3. Each codon specifies only 1 amino acid






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






5. Inhibits thymidylate synthase down thymine






6. Condensed - transciptionally inactive HC- Highly condensed






7. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






8. CUT 1 ring Cut the Py






9. The 3 prime end






10. Genetic code is conserved throughout evolution






11. Hydroxy proline and hydroxylysine






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






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






14. Prophas - metaphase - anaphase telophase






15. 1) primary transcript combines with snRNPs and other proteins to form spliceosome 2) lariat shaped intermediate is generated 3) Lariat is removed and released to precisely join 2 exons






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






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






18. 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






19. Prevents stranges from reannealing






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






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






22. Change resulting in early stop codon






23. HS1 - HSB - H2 - H4






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






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






26. ATP






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






28. Unwinds DNA template at replication fork






29. Base + ribose






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






31. Odd 30S plus 50 S=70S






32. Connective tissue






33. Neurons - skeletal - and cardiac muscle - RBCs






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






35. GTP






36. 5 prime to 3 prime






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






38. UGA - UAG - UAA






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






40. Antigout - acts on mts






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






42. Inhibits bacterials dihydrofolate reducatese down thymine






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






44. Neurons






45. Substituting a pyramidine for a pyrimadine






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






47. 9+2 arrangement of microtubules -






48. Ribonucleotide reductase






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






50. Anti cancer - act on microtubules