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Will littermates and siblings have the same DNA results?

Nope! Even though kittens of the same litter may demonstrate similar (or extremely different!) traits, they will always have different reports. 

When genes are passed on to kittens, each parent donates a random assortment of genes. This can result in extremely similar or extremely different genes passed on to each sibling. In addition, cats from the same litter can have more than one father! This is more common in outdoor cats and can produce an even wider array of physical and genetic traits. Basepaws can help you learn what exactly is found underneath all that fur, in each kitten!

A great example of this is our CEO’s kitties, Stormy and Sunny. Although they are siblings from the same litter, Stormy is a dilute calico (female), while Sunny is an orange tabby (male). Each has a completely different personality and health history.

We also want to stress the importance of the Genetic Health Marker report for each kitten. The multitude of gene variations from each parent can also result in potentially different Health Marker reports for every kitten in a litter.


Do you test for sibling relationships or cat relationships?

We do not test for cat relationships at this time, whether cats are siblings or if related cats are a part of a broader family tree. We are still growing our database to make this feature possible, and we know many cat parents are eager to find out if their little ones are truly related.

If you have already tested your cats with us, and you know that they are in the same family tree, please let us know at [email protected]. With your help, we can reach this goal!

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