TCOGE: Most of a cell's DNA is not translated Flashcards
(17 cards)
What are the 4 types of stem cells?
- Totipotent
- Pluripotent
- Multipotent
- Unipotent
What cells can totipotent cells divide into?
Any type of cell
What cells can pluripotent cells divide into?
Many types of cell
What cells can multipotent cells divide into?
Limited types of cells
What cells can unipotent cells divide into?
One type of cell
Give reasons why stem cells are useful at treating diseases:
- Produces healthy cells needed by the patient
- Prevents production of faulty cells
- Single treatment has a long-term impact
Why is gene therapy only a short-term solution?
The new modified cells will eventually be replaced by new unmodified cells.
Pluripotent cells are collected from an ______ or a _______.
Embryo or fetus
Multipotent cells are collected from ______ or a __________.
Adult bone marrow or a baby’s umbilical cord
What is the ethical issue of collecting pluripotent stem cells from an embryo?
An embryo is destroyed during stem cell collection.
What is the ethical issue of collecting pluripotent stem cells from a fetus?
The fetus must have been aborted or miscarried.
What is the ethical issue of collecting multipotent stem cells from adult bone marrow?
Harvesting adult bone marrow is painful and risky for the donor.
Multipotent cells can be collected from a baby’s umbilical cord- which can fall of naturally. This makes it a more _____ way to collect multipotent stem cells.
ethical
What are lab-made pluripotent cells called?
Induced pluripotent cells
Induced pluripotent cells are made from _______ cells that are genetically altered to enable the translation of additional genes.
unipotent
What are the disadvantages of gene therapy?
- May only have a short term impact.
- It could trigger the patients immune response.
