Oligonucleotide Array-based Comparative Genomic Hybridization

**Semantic type:** Molecular Biology Research Technique

**Definition:** A molecular cytogenetic method combining chromosomal comparative genomic hybridization technique and microarray to detect chromosomal aberrations and changes in DNA copy numbers in the genome, using oligonucleotides immobilized on a solid support as targets for hybridization.

**Synonyms:** - OLIGO ACGH - Oligonucleotide Array-based CGH