Coat Type Options

Hair Length

The Hair Length gene has two options, Short Hair and Long Hair.  Note that the long hair may or may not “puff out” like in a Persian. The volume is controlled by the type and amount of undercoat hairs.

If you are not sure that your cat is long-haired, check the tail and paws. A fluffy “bottlebrush” tail and hair extending out past the paw pads are a good sign of long hair.

Short Hair Cat

Go to Short Hair Cat Gene Table…

Long Hair Cats

Go to Long Hair Cat Gene Table…

Gene Tables


Gene Table (Short Hair)
Since Short Hair is dominant, we only know that one ‘L’ gene is present. Fill in the Long Hair row like this:

Locus Genes Notes
Long Hair L/-  short hair

Return to coat types…


Gene Table (Long Hair)

Since long hair is recessive, we know that two ‘l’ genes are present. Fill in the Long Hair row like this:

Locus Genes Notes
Long Hair l/l  long hair

Return to coat types…