Name three potential sources of stem cells.

Researchers sought to grow blood vessels in a lab for implantation into patients with clogged coronary arteries. To avoid immune rejection, they wanted to grow vessels by starting with patients own vascular smooth muscle cells (SMCs). However, most patients requiring coronary artery replacement are elderly, and their vascular SMCs do not divide often enough to grow a new vessel. To get around this problem, the researchers introduced into the cells the gene coding for a particular protein in a format through which the gene would be transcribed and the protein produced. What gene was introduced into the elderly patients' SMCs to allow continued cell divisions? O primase O telomerase ODNA polymerase O telomere capping protein O topoisomerase A

1-2 paragraphs  the role of stem cells

Please explain the difference between Adult Stem Cell and Embryonic Stem Cells.

What two properties define a stem cell? Distinguish between a totipotent stem cell, a pluripotent stem cell, and a precursor (progenitor) cell.

What means genes are delivered directly to somatic cells?

Name one type of gene that leads to cancer when it is mutated.

What is induction?

A change in what type of cell is most likely to cause a mutation that can be inherited?

What is the function of RAG1? What will happen if RAG1's function is lost due to mutations?