When I search for what is CNV, the term CNA also pop up in every article which makes me confused because I am not from biology background. So far my understanding is, both cnv and cna are duplication, insertion, deletion of base pairs. For example, if
GCGATGA appears more than once in a DNA, then it is either CNV or CNA. I also know that copy number must be >1kb. After reading some articles I got this general idea about the terms but not sure if I am correct though. It would be nice if someone explain both terms.