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First Aid: Biochemistry Molecular

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Base + ribose






2. Bind 50S blocking translocation






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






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






5. Elastase






6. One codon AUG






7. ATP- AMP (2 phosphoanhydride bonds)






8. P53 and RB normally inhibit g1 to S progression






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






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






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






12. Does not






13. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






14. Antigout - acts on mts






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






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






17. 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






18. Non homologous end joining






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






20. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)






21. Methionine - which may be removed before translation is completed






22. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility






23. Inhibits thymidylate synthase down thymine






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






25. Responsible for the accuracy of amino acid selection






26. Greater melting temperature lower fluidity






27. Phosphorylation - glycosloation - hyderoxylation






28. Codes for formyl methionine (f - Met)






29. Anterograde to microtubule






30. Remain in G0 regenerate from stem cells






31. HS1 - HSB - H2 - H4






32. AUG inAUGurates protein synthesis






33. Neurons






34. Methyl THYmine has a meTHYl






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






36. Ketone






37. Ribonucleotide reductase






38. Seals






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






40. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






41. Even 40S 60S =80S






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






43. Hydroxy proline and hydroxylysine






44. Read froma fixed starting point as a continous sequenecs of bases






45. MRNA






46. Each codon specifies only 1 amino acid






47. CUT 1 ring Cut the Py






48. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)






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






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







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