Now, in males, in normal males, we have one X sex chromosome and one Y sex chromosome. And in normal females, we have one X and the other one is also an X. So notice that because each one of these pairs consist of two individual chromosomes, that means on the normal conditions, we have two multiplied by 23 or 46 individual chromosomes within the human carotype. 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.