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






2. Inhibits 50S peptidyl transferase






3. Neuroglia






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






5. HS1 - HSB - H2 - H4






6. Substituting a purine for a pyrimdine or vice versa






7. Each codon specifies only 1 amino acid






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






9. Prophas - metaphase - anaphase telophase






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






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






12. Phosphorylation - glycosloation - hyderoxylation






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






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






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






16. Retrograde to microtubules






17. Change resulting in early stop codon






18. Microvilli - muscle contraction - cytokinesis - adhering juntions






19. ATP- AMP (2 phosphoanhydride bonds)






20. VItamin C






21. 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






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






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






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






25. Odd 30S plus 50 S=70S






26. Type III






27. ATP






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






29. 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






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






31. Proline - glycine






32. Antigout - acts on mts






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






34. 4 high enrgy bonds






35. Inhibits ribonucleotide reductase






36. Even 40S 60S =80S






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






38. 9+2 arrangement of microtubules -






39. 1P blocked by chloramphenicaol and macrolide






40. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy






41. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






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






43. Elastase






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






45. Methyl THYmine has a meTHYl






46. Binds 50S blocking translocation






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






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






49. Base + ribose






50. Bm - kidney - ears and eyes