So in every single somatic cell of our body under normal conditions, these are the chromosomes that we're going to find in the nucleus of those somatic cells. So now that we know what a caraotype actually looks like in a normal, healthy human individual, let's now discuss chromosomal abnormalities. So one of the common type of chromosomal abnormalities is anneuploids. So in some individuals, within the somatic cells of some individuals, we can either have an extra copy of a chromosome or we can have one less chromosome than we normally have. So we can either have 47 chromosomes or 45 chromosomes. And in either case, these conditions are known as annuploid.