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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. 3 H bonds






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






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






4. Genetic code is conserved throughout evolution






5. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.






6. Greater melting temperature lower fluidity






7. Proline - glycine






8. CUT 1 ring Cut the Py






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






10. 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






11. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






12. ATP- AMP (2 phosphoanhydride bonds)






13. The N to C






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






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






16. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers






17. Non homologous end joining






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






19. Hn RNA






20. VItamin C






21. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA






22. The 3 prime end






23. Each codon specifies only 1 amino acid






24. Hydroxy proline and hydroxylysine






25. Contain the actual genetic information coding for protein






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






27. HS1 - HSB - H2 - H4






28. 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






29. Responsible for the accuracy of amino acid selection






30. Unwinds DNA template at replication fork






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






32. Type III






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






34. 2 H bonds greater GC content greater melting point






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






36. 1P (blocked by tetracycline)






37. GTP






38. Bind 30S subunit preventing attachment of aminoacyl - tRNA






39. Poly adenylation






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






41. Tansport cellular cargo toward opposite ends of microtubule tracks






42. AUG inAUGurates protein synthesis






43. Antigout - acts on mts






44. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits






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






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






47. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)






48. Inhibits by binding to the potassium side






49. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds






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