Using the traditional methods in molecular biology, researchers were unable to carry out the study on the entire genome or a gene. One of the newly emerged techniques is the microarray. This is a technique in which the entire DNA sequences of an organism or particular sequence of a gene are arranged in a grid pattern and attached to a solid support, so as to determine the sequence of the entire genome or the specific gene to detect variations in the gene sequence or to map a gene. The technique is used in many fields of science. But the major application of this technique is gene expression analysis and genetic variation analysis, thus helping scientist to analyze the defective gene in a genetic disorder.
Last date updated on June, 2014