Answer:
To study gene expression from a particular sample of cells, the material which is usually hybridized to a DNA microarray is:
- Fluorescently labeled cDNA
Explanation:
- cDNA is used in microarray which is such tool that is used in laboratory to study the expression of different genes at the same time. The process of detecting the expression of genes with the help of cDNA is known as expression analysis.
- The method of DNA microarray has been used extensively to check the expression of genes and mutation in genes. The fluorescently labeled cDNA are used to hybridized DNA microarray and then amount of RNA is measured indirectly with the help of labeled molecules.
