Cat Genetics

D.H. asks, "Dear Miss Kitty,

My partner and I recently got two kittens from the SPCA. Although one is a dainty all-white short-hair, her sister is a burly grey-striped long-hair with a racoon tail. They also have radically different personalities. The SPCA swears these two are siblings from the same litter, but they are nothing alike. How can this be? Was Momma 'a rolling stone' of some sort?

D.H.

Hi, D.H. Welcome to the Wonderful World of Genetics!

There are a couple of things that could be going on here. The first is that yes, the mother cat was impregnated by two or more male cats at the same time. Well, the impregnation may not have occurred at the exact same time, but she could have "gone out for Italian food" with one cat one night, and another cat the next, with all of the various seeds taking root and producing all kinds of kittens.

The second thing to remember is that in the Wonderful World of Genetics, there are things called "dominant" and "recessive" genes. Dominant genes always show up when they are present. Recessive genes only show up if there are two of them. If both parents have one dominant and one recessive gene, there is a one in four chance that the offspring will display the recessive traits. This is why in large Irish families, there is always one kid with dark brown hair.

But just look at the families around you. Take me, for example. I have strawberry blond hair, greenish eyes, and almost no nose. My brother has blond hair, blue eyes, and a decent sized nose. My mom has coloring similar to me, and my dad has dark hair and blue eyes. How did those parents create a blond son? Genetics! Hooray genetics!

Another thing to remember is that for a cat, white is a "masking" color as opposed to being a color in and of itself. If you want to think of it as something akin to albino-ism, you probably could and nobody would fault you. Unless you tell them you think that way, at which time, they may point and laugh. But what it means is that just because the cat is white doesn't mean she's not a speckled tabby at heart, so to speak.

Same goes for personality. Cats is cats. They do what they want and nobody really knows why.

Thank you, D.H. for your question! Keep 'em coming, guys! askmisskittyanything@gmail.com