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CuriousTab

Protein Structure problems


  • 1. Marfan's syndrome is thought to be a mutation affecting

  • Options
  • A. hemoglobin synthesis
  • B. collagen synthesis
  • C. metabolism of homogentisic acid
  • D. insufficient thyroid production
  • Discuss
  • 2. BRACl, an inherited form of breast cancer, regulates cell division by

  • Options
  • A. binding to a DNA sequence
  • B. complexing with cyclins
  • C. binding to the cell outer membrane
  • D. binding to the protein RAD 51 which repairs DNA damage
  • Discuss
  • 3. Individuals with PKU disease are mentally retarded unless

  • Options
  • A. phenylalanine in the diet is restricted
  • B. tyrosine in the diet is restricted
  • C. homogentisic acid in the diet is restricted
  • D. none of the above
  • Discuss
  • 4. Cyclins are proteins that

  • Options
  • A. regulate ability of cells to invade tissue
  • B. regulate passage from one stage of cell division to another
  • C. regulate apoptosis of damaged cells
  • D. none of the above
  • Discuss
  • 5. Over 50% of common cancers are associated with damage to a protein, p53. This protein

  • Options
  • A. is a cyclin
  • B. is a tumor supressor
  • C. is an oncogene
  • D. regulates apoptosis
  • Discuss
  • 6. The four subunits of the hemoglobin (Hb) gene represent protein's

  • Options
  • A. primary structure
  • B. secondary structure
  • C. tertiary structure
  • D. quaternary structure
  • Discuss
  • 7. Beta pleated sheets are examples of protein's

  • Options
  • A. primary structure
  • B. secondary structure
  • C. tertiary structure
  • D. quaternary structure
  • Discuss
  • 8. Metastasis involves

  • Options
  • A. ability of cells to dissolve cellular matrix
  • B. metalloprotein levels
  • C. decreased levels of proteins that regulate metalloproteins
  • D. all of the above
  • Discuss
  • 9. Sickle cell disease is due to

  • Options
  • A. a mutation in the beta chain of Hb
  • B. a mutation in the alpha chain of Hb
  • C. infection with a parasite
  • D. none of the above
  • Discuss
  • 10. Signal sequences are part of a protein that

  • Options
  • A. signal folding of the protein
  • B. signal the protein synthesis on the ribosomes is ended
  • C. transport proteins to other sites within the cell
  • D. refold proteins in prion-associated diseases
  • Discuss

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