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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.
  • 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. Commonly results in dramatic decrease in amount of gene transcribed






2. Cilia - glagella - mitotic spindle - neurons - centrioles






3. Hn RNA






4. Ketone






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






6. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






8. Unwinds DNA template at replication fork






9. Inhibits ribonucleotide reductase






10. Anterograde to microtubule






11. Less condensed - transciptionally active=eu truly transcobed






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






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






14. Methyl THYmine has a meTHYl






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






17. Antigout - acts on mts






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






19. Proline - glycine






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






21. Seals






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






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






24. Neurons - skeletal - and cardiac muscle - RBCs






25. Inhibits thymidylate synthase down thymine






26. Site where negative regulators bind






27. Same aa often base change in 3rd position of codon






28. Retrograde to microtubules






29. Made from IMP precursor






30. Bind 50S blocking translocation






31. Has enough energy to created the peptide bond






32. 4 high enrgy bonds






33. 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






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






35. 3 H bonds






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






37. Introns stay In the nucleus whereas EXons EXit and are EXpressed






38. Binds 50S blocking translocation






39. Anti breast cancer - acts on mts






40. Exocytose procollagen into extracellylar sace






41. VItamin C






42. Greater melting temperature lower fluidity






43. Neuroglia






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






45. The N to C






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






47. Elastase






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






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






50. Blocks denovo purine synthesis