Test your knowledge


Choose the best answer based on your reading of this module

  1. What defines stem cells?
    1. Cells that can transform into any type of cell, such as blood, muscle, or skin cells.
    2. Cells that are obtained from the inner mass of a pre-implanted embryo thereby destroying the embryo.
    3. Cells that have the ability to renew themselves continuously.
    4. All of the above.

  2. Who was the first to conceive the idea of cellular differentiation?
    1. Theodor Schwann
    2. Robert Hooke
    3. Alexander Maksimov
    4. John Enders

  3. What are the potential medical applications of stem cells?
    1. To replace or repair injured cells in patients
    2. To be used to in organ regeneration
    3. To make human clones after an individual accidently dies
    4. Only A and B

  4. What are the three broad categories of stem cells?
    1. Adult, embryonic and umbilical cord stem cell
    2. Totipotent, Pluripotent, and Multipotent stem cell
    3. Both
    4. None of the above

  5. What is a pluripotent stem cell?
    1. Cells found in the inner mass of blastocyst that can differentiate into over 200 different cell types except placental cells
    2. Stem cells derived from adult tissue, cord blood, and bone marrow and that do not differentiate into all the different cell types
    3. Any stem cell found in human embryos
    4. None of the above

  6. What is the gold standard “stem cell”?
    1. Fertilized human egg
    2. Stem cells obtained from the inner mass of embryos
    3. Stem cells obtained from umbilical cord blood
    4. Stem cells obtained from bone marrow

  7. What does pluripotency mean?
    1. Self-renewal property of the cell
    2. The ability to transform into any type of cell
    3. The ability to form tumors
    4. None of the above

  8. What stem cell technology requires the transfection of cells with the following four genes - Oct4, Sox2, Klf4, c-Myc?
    1. Induced Pluripotent System (iPS)
    2. Somatic Cell Nuclear Transfer (SCNT)
    3. Cloning
    4. None of the above

  9. Who discovered and developed iPS technology?
    1. Shinyi Yamanaka
    2. John Gearhart
    3. John Enders
    4. Charles Darwin

  10. What is the scientific challenge in developing a new therapy based upon embryonic stem cell replacement?
    1. Tissue rejection and tumor formation
    2. Hard to harvest
    3. Slow to proliferate
    4. None of the above

  11. Approximately how many embryonic stem cell lines are federally approved (as of 2011)?
    1. 20
    2. 100
    3. 65
    4. 93

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