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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. Change resulting in early stop codon






2. GTP






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






4. Exocytose procollagen into extracellylar sace






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






6. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






7. Proline - glycine






8. Contain the actual genetic information coding for protein






9. Less condensed - transciptionally active=eu truly transcobed






10. Microvilli - muscle contraction - cytokinesis - adhering juntions






11. P53 and RB normally inhibit g1 to S progression






12. Binds 50S blocking translocation






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






14. AUG inAUGurates protein synthesis






15. Codes for formyl methionine (f - Met)






16. Uracil






17. Inhibits thymidylate synthase down thymine






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






19. H1






20. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






21. Genetic code is conserved throughout evolution






22. 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






23. 2 H bonds greater GC content greater melting point






24. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints






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






26. Odd 30S plus 50 S=70S






27. CUT 1 ring Cut the Py






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






30. Non homologous end joining






31. The N to C






32. Hydroxy proline and hydroxylysine






33. Muscle






34. Phosphorylation - glycosloation - hyderoxylation






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






36. Substituting a purine for a pyrimdine or vice versa






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






38. HS1 - HSB - H2 - H4






39. Neurons - skeletal - and cardiac muscle - RBCs






40. Unwinds DNA template at replication fork






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






42. Anit helminth - act on microtubules






43. Prophas - metaphase - anaphase telophase






44. MRNA






45. Antifungal - act on microtubules






46. Neurons






47. Type III






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






49. Even 40S 60S =80S






50. Methyl THYmine has a meTHYl