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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. Retrograde to microtubules






2. Close to - far from or even within (in an intron) the gene whose expression it regulates






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






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






5. Greater melting temperature lower fluidity






6. AUG inAUGurates protein synthesis






7. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






8. Change resulting in early stop codon






9. Microvilli - muscle contraction - cytokinesis - adhering juntions






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






11. 1P (blocked by tetracycline)






12. Contain the actual genetic information coding for protein






13. CCA AT 3 PRIME END






14. Poly adenylation






15. Proline - glycine






16. CUT 1 ring Cut the Py






17. Cilia - glagella - mitotic spindle - neurons - centrioles






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






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






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






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






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






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






25. Base+ribose+phosphate linked by a phosphodiester bond






26. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances






27. Responsible for the accuracy of amino acid selection






28. Regulatory proteins that control cell cycle events; phase specific; activated CDKs






29. P53 and RB normally inhibit g1 to S progression






30. Blocks denovo purine synthesis






31. 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)






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






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






34. Binds 50S blocking translocation






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






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






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






38. Phosphorylation - glycosloation - hyderoxylation






39. Antifungal - act on microtubules






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






41. Lysine/hydroxylysine and combines to form collagen






42. Even 40S 60S =80S






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






44. Splicing out of introns






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






46. HS1 - HSB - H2 - H4






47. UGA - UAG - UAA






48. 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






49. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA






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