Cancer Biomarkers and Selectable Markers Quiz

Selectable markers are used in laboratory research to identify and select cells that have taken up a particular gene or genetic modification.

Selectable markers are often used in genetic manipulation techniques, such as gene editing or gene transfer experiments, to aid in identifying and selecting cells that have successfully incorporated the desired genetic changes.

A selectable marker is a gene introduced into a cell, especially a bacterium or to cells in culture, that confers a trait suitable for artificial selection.

<p>In cancer studies, selectable markers are frequently genes that confer resistance to certain drugs or compounds.</p> Signup and view all the answers

<p>Researchers use selectable markers to identify and isolate cells that have taken up a specific genetic modification or gene of interest, which helps in creating cell lines with desired traits, such as drug resistance or enhanced proliferation.</p> Signup and view all the answers

<p>CEA stands for carcinoembryonic antigen, which is a protein that is a type of tumor marker.</p> Signup and view all the answers

<p>Tumor markers are substances often made by cancer cells or by normal cells in response to cancer. They are related to cancer as they can indicate the presence of cancer and its progression.</p> Signup and view all the answers

<p>CEA tests are not used for screening or diagnosis because high levels of CEA can be normal in healthy, unborn babies and are not specific to a certain type of cancer.</p> Signup and view all the answers

<p>CEA testing may help healthcare providers learn more about the cancer and chance of recovery for individuals diagnosed with a cancer that can cause high CEA levels. It is also used to check if cancer treatment is working.</p> Signup and view all the answers

<p>Most CEA tests use a sample of blood to measure CEA levels. In some cases, a sample of fluid from the spine, chest, or abdomen can be used, but this is less common.</p> Signup and view all the answers