One way they do this is to use a DNA microarray to determine the expression levels of genes. When a gene is expressed in a cell, it generates messenger RNA (mRNA). Overexpressed genes generate ...

The F9 teratocarcinoma cell line is a well-documented model system ... The advent of DNA microarray technology now allows the ability to examine the changes in RNA levels of a very large number ...

The membrane around the nucleus disappears. Metaphase Chromosomes and their copies line up in the middle of the cell. Anaphase Chromosomes and their copies are pulled to different ends of the cell.