
Chromosomal aberration is a structural abnormality in one or more chromosomes. Several mutagenic agents are frequently exposed to the human population, they have potential to damage the DNA. In many cases result in the form of chromosomal aberration. Chromosomal aberration is majorly 4 type deletion, duplication, inversion, and translocation. Induced chromosomal aberrations can be classified into two main classes - chromosome type aberration and chromatids type aberrations. Chromosomal aberration includes rearrangement, breakage and numerical changes which play important role in cancer formation, heritable mutation, developmental abnormalities and embryonic loss. The most common type of chromosomal abnormality is aneyploidy. Chromosomal Aberration Test Market procedures importance is increasing with time for determination of genetic risk, DNA, and chromosomal structure changes. Chromosomal aberration tests performed in vitro and in vivo which are designed to detect compounds that include DNA damage. Basically test using mammalian cells is used to identify causative agents of structural changes in chromosomes. Chromosomal aberration test involves the real-time analysis of chromosomes to identify structural and sequential variation.