Test your basic knowledge |

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. Anterograde to microtubule






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






3. Intervening noncoding segments of DNA






4. Muscle






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






6. Anti breast cancer - acts on mts






7. 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






8. The 5prime end (energy for the bond)






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






10. Substituting a purine for a pyrimdine or vice versa






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






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






13. Ketone






14. Hn RNA






15. Condensed - transciptionally inactive HC- Highly condensed






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






17. Base + ribose






18. Connective tissue






19. Codes for formyl methionine (f - Met)






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






21. 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






22. Even 40S 60S =80S






23. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






24. Changed aaconservative - new aa is similar in chemical structure






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






26. Cyclin depndent kinases; consituative and inactive






27. Binds 50S blocking translocation






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






29. Has enough energy to created the peptide bond






30. Read froma fixed starting point as a continous sequenecs of bases






31. UGA - UAG - UAA






32. Inhibits thymidylate synthase down thymine






33. 4 high enrgy bonds






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






35. 5 prime to 3 prime






36. Must be both activated and inactivated for cell cycle to progress






37. Alpha 1 antitrypisn






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






39. Ribonucleotide reductase






40. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine






41. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)






42. Non homologous end joining






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






44. Site where negative regulators bind






45. Does not






46. Seals






47. Prophas - metaphase - anaphase telophase






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






49. Each codon specifies only 1 amino acid






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






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests