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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. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






2. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






3. CCA AT 3 PRIME END






4. Neurons - skeletal - and cardiac muscle - RBCs






5. 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






6. H1 string






7. Create a nick in the helix to relieve supercoils created during replication






8. AUG inAUGurates protein synthesis






9. Seals






10. Neuroglia






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






12. ATP






13. Made from orogate precuror with PRPP added later






14. H1






15. Does not






16. Inhibits thymidylate synthase down thymine






17. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y






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






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






20. 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






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






22. Contain the actual genetic information coding for protein






23. Inhibit formation of the initation complex and cause misreading of mRNA






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






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






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






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






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






29. Non homologous end joining






30. Anti breast cancer - acts on mts






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






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






33. 5 prime to 3 prime






34. Lysine/hydroxylysine and combines to form collagen






35. Exocytose procollagen into extracellylar sace






36. Condensed - transciptionally inactive HC- Highly condensed






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






38. Tansport cellular cargo toward opposite ends of microtubule tracks






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






40. Inhibits by binding to the potassium side






41. Retrograde to microtubules






42. G1 - S - G2 - Mitosis






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






44. Binds 50S blocking translocation






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






46. Greater melting temperature lower fluidity






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






48. Prevents stranges from reannealing






49. DNA And RNA synthesized in the 5-3 direction






50. Intervening noncoding segments of DNA