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






2. Each codon specifies only 1 amino acid






3. 5 prime to 3 prime






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






5. The 3 prime end






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






7. H1 string






8. Less condensed - transciptionally active=eu truly transcobed






9. 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






10. Bind 50S blocking translocation






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






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






13. 2 H bonds greater GC content greater melting point






14. Remain in G0 regenerate from stem cells






15. Elastase






16. Inhibits by binding to the potassium side






17. Codes for formyl methionine (f - Met)






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






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






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






21. Responsible for the accuracy of amino acid selection






22. Splicing out of introns






23. Uracil






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






25. MRNA






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






27. Ribonucleotide reductase






28. Inhibits 50S peptidyl transferase






29. Odd 30S plus 50 S=70S






30. VItamin C






31. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)






32. Ketone






33. HS1 - HSB - H2 - H4






34. CUT 1 ring Cut the Py






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






36. Antigout - acts on mts






37. Anti breast cancer - acts on mts






38. Greater melting temperature lower fluidity






39. Change resulting in early stop codon






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






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






42. Microvilli - muscle contraction - cytokinesis - adhering juntions






43. Cyclin depndent kinases; consituative and inactive






44. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)






45. One codon AUG






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






47. Substituting a pyramidine for a pyrimadine






48. (A - G) 2 rings Pure As Gold






49. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






50. Anti cancer - act on microtubules