The OMB Control Number for this information collection is 2126-0006. Public reporting for this collection of information is estimated to be approximately 1 minute per response, including the time for reviewing instructions, gathering the data needed, and completing and reviewing the collection of information. All responses to this collection of information are mandatory.
From Wikipedia, the free encyclopedia. A true breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring.n organism is referred to as true breeding for each trait to which this applies, and the term true breeding is also used to describe individual genetic traits.
The term 'purebred' refers to a dog which is born of two dogs which are registered as being that particular breed. A dog can not become kennel club registered as, for example, a border collie if its parents are not both a border collie. Therefore, that dog will not be able to sire a litter of purebred puppies. Purebred dogs have been bred for many centuries for specific traits and characteristics. When you breed a purebred dog with another breed, these characteristics are 'diluted' meaning that there is an introduction of other traits.