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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. G1 - S - G2 - Mitosis






2. Anti cancer - act on microtubules






3. Inhibits 50S peptidyl transferase






4. Tansport cellular cargo toward opposite ends of microtubule tracks






5. UGA - UAG - UAA






6. Phosphorylation - glycosloation - hyderoxylation






7. VItamin C






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






9. Made from IMP precursor






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






11. Makes an RNA primer on which DNA polymerase II can initiate replication






12. ATP






13. CUT 1 ring Cut the Py






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






15. 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






16. Even 40S 60S =80S






17. Anti breast cancer - acts on mts






18. 1P blocked by chloramphenicaol and macrolide






19. Ketone






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






21. Condensed - transciptionally inactive HC- Highly condensed






22. Uracil






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






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






25. Intervening noncoding segments of DNA






26. 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






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






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






29. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)






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






31. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site






32. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex






33. Binds 50S blocking translocation






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






35. 5 prime to 3 prime






36. ATP- AMP (2 phosphoanhydride bonds)






37. Connective tissue






38. Bind 50S blocking translocation






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






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






41. Inhibits thymidylate synthase down thymine






42. Contain the actual genetic information coding for protein






43. Exocytose procollagen into extracellylar sace






44. Nucleotide excision repair - Base Excision repair - Mismath repair






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






46. Methyl THYmine has a meTHYl






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






48. Blocks denovo purine synthesis






49. Responsible for the accuracy of amino acid selection






50. HS1 - HSB - H2 - H4