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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. Substituting a purine for a pyrimdine or vice versa






2. Tansport cellular cargo toward opposite ends of microtubule tracks






3. Inhibits thymidylate synthase down thymine






4. More than 1 codon may code for the same amino acid






5. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends






6. Anti breast cancer - acts on mts






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






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






9. Muscle






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






11. Exocytose procollagen into extracellylar sace






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






13. Inhibits bacterials dihydrofolate reducatese down thymine






14. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.






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






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






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






18. Less condensed - transciptionally active=eu truly transcobed






19. Hydroxy proline and hydroxylysine






20. HS1 - HSB - H2 - H4






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






22. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






23. Cyclin depndent kinases; consituative and inactive






24. CCA AT 3 PRIME END






25. 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






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






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






28. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






30. Responsible for the accuracy of amino acid selection






31. Binds 50S blocking translocation






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






33. 1P blocked by chloramphenicaol and macrolide






34. Blocks denovo purine synthesis






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






36. Inhibits 50S peptidyl transferase






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






38. Does not






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






40. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






41. Ribonucleotide reductase






42. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap






43. The 3 prime end






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






45. Methyl THYmine has a meTHYl






46. H1






47. Prophas - metaphase - anaphase telophase






48. Prevents stranges from reannealing






49. AUG inAUGurates protein synthesis






50. The N to C