So let's take a look at the female and then let's take a look at the male. So we know that in the female, the two types of sex chromosomes are the X chromosome and the X chromosome. Now, we know that a gene can either be dominant or a gene can be recessive. Now, if the gene is dominant, we usually describe the gene with an uppercase letter. If the gene is recessive, we usually describe it with a lowercase letter. Now, what are the different possibilities of a female?