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






2. The 3 prime end






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






4. 1P (blocked by tetracycline)






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






6. 2 H bonds greater GC content greater melting point






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






8. Base + ribose






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






10. 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






11. HS1 - HSB - H2 - H4






12. Anti breast cancer - acts on mts






13. Antigout - acts on mts






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






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






16. Anti cancer - act on microtubules






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






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






19. Connective tissue






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






21. Antifungal - act on microtubules






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






23. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments






24. Site where negative regulators bind






25. Tansport cellular cargo toward opposite ends of microtubule tracks






26. Epithelial cells






27. Bm - kidney - ears and eyes






28. Anit helminth - act on microtubules






29. Substituting a pyramidine for a pyrimadine






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






31. Change resulting in early stop codon






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






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






34. Poly adenylation






35. Binds 50S blocking translocation






36. P53 and RB normally inhibit g1 to S progression






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






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






39. Neuroglia






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






41. Elastase






42. Phosphorylation - glycosloation - hyderoxylation






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






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






45. Proline - glycine






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






47. 9+2 arrangement of microtubules -






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






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






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