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






2. H1






3. Responsible for the accuracy of amino acid selection






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






5. Remain in G0 regenerate from stem cells






6. 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)






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






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






9. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA






10. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






11. Cyclin depndent kinases; consituative and inactive






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






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






14. The 3 prime end






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






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






17. Methionine - which may be removed before translation is completed






18. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus






19. Phosphorylation - glycosloation - hyderoxylation






20. Lysine/hydroxylysine and combines to form collagen






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






22. Anterograde to microtubule






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






24. The 3 prime hydroxyl of the nascent chain is the target






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






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






27. Inhbits RNA pol II (found in death cap mushrooms)






28. ATP






29. 3 H bonds






30. Inhibits 50S peptidyl transferase






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






32. Codes for formyl methionine (f - Met)






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






34. Methyl THYmine has a meTHYl






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






36. 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






37. VItamin C






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






39. Inhibits by binding to the potassium side






40. Change resulting in early stop codon






41. Bm - kidney - ears and eyes






42. Connective tissue






43. HS1 - HSB - H2 - H4






44. Anti breast cancer - acts on mts






45. Unwinds DNA template at replication fork






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






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






48. Seals






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






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