What's in Your Horse's DNA?

Breeders have always been barnyard geneticists, taking a critical look at their broodmares and stallions to create foals with the traits they want, such as color, conformation, speed, athleticism, personality, intelligence, and health.

In recent years, laboratory geneticists have created tools and tests that enhance the possibility of producing healthy foals. Furthermore, the equine genome–the complete sequence of DNA bases, the genes (pieces of DNA that encode molecules such as proteins and determine hereditary traits), and chromosomes (large segments of DNA in each cell&#

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