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But if you’re biologically female, things work a little differently. If you’re biologically male, then each of your cells get instructions from both chromosomes. While others are found on the Y chromosome. Men with Klinefelter syndrome have two X chromosomes and one Y chromosome (XXY).Ĭertain genes are found on the X chromosome. Women with Turner syndrome have only one chromosome (X). If you’re biologically male, you most likely got an X chromosome from your mother and a Y chromosome from your father.Įven though XX and XY are the two most common chromosomal combinations, others are possible. If you’re biologically female, you most likely got an X chromosome from each parent. There are two types of sex chromosomes known as X chromosomes and Y chromosomes. Most of us get one sex chromosome from each parent. How do your sex chromosomes affect your cells? We can look at tortoiseshell and calico cats to understand this a little better.

But did you know that the fur of some cats can be useful in understanding the branch of genetics called epigenetics? Epigenetics is the study of changes in gene expression due to factors other than changes to DNA.

There are millions of cat videos that can be found on YouTube from all over the world!Ībout 37% of Canadian homes have at least one cat.Ĭats can make us laugh, they can make good family pets, or they may even scare some of us. People love cats! And they are not just popular in Canada.