Micro Bully Genetics: Designer Dog Origins

Micro Bully in a genetics research setting with DNA structures.
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Dogs come in a great variety of sizes and colors in all parts of the world, but some offer a distinctive and unique appearance. One such distinctive breed is the micro bully, which is becoming very popular due to its unique Micro bully genetics. When we plan to adopt a dog, the first thing we have to ensure is to note all its nutritional and health requirements. Yet, if we can afford one, we would love to have one with a great and calm temperament. Although there are numerous dog breeds, a micro bully is becoming very popular because of being a designer dog breed.

When we have a look at the micro bully genetics, it is the mixture of the Patterdale Terrier or the American Staffordshire Terrier and the American Pit Bull Terrier. This is why a micro bully has numerous characteristics of the American bully but also has distinct differences. It is worth mentioning that the majority of people love micro bully not because of their looks but also because of their loyalty and nature, besides their appealing muscular build.

A gradient illustration of bulldogs increasing in size from left to right against colorful stripes, with a timeline of random years and text below them, combining vintage and contemporary design elements.

Why was Micro Bully Bred?

Compared to the other bully breeds, the micro bully is relatively new, as it emerged a few decades back. The micro bully genetics suggest that it is basically bred by crossing various breeds of Terrier and Bulldog so that a specific temperament and appearance can be achieved. The main purpose of introducing this particular dog breed was to offer a companion pet dog for older people and families who don’t need a lot of exercise.

The best thing about the micro bully is that it loves fun and remains dedicated to the owner. During the development of this breed, the main emphasis was on the laid-back personality as compared to the Pitbull while giving it bulk. This breed appeared in the 2000s, but it made a great impact after that. Keep in mind that the goal of the breeders was always to make a compact and a smaller dog and not compromise on the distinctive appearance of a bully.

Digital artwork of a Micro Bully in a side profile against a neutral backdrop, emphasizing its large head, muscular build, short legs, and cropped ears. Adjacent to the dog are color swatches showcasing the range of coat colors for the breed.

What Does a Micro Bully Look Like?

Micro bully is one of the smallest dog breeds that comes with a strong muscular body. It has a huge head, a large neck, short legs and a stocky figure. Its floppy ears are normally cropped, whereas the overall build is quite solid and has a small tail. Because of the micro bully genetics, its coat is smooth and short, and you will find it in a number of colours. So, choosing the colour according to your liking is up to you.

A micro bully is normally 10 to 12 inches tall and weighs between 35 to 45 pounds, which means that it has a lot of mass as compared to its size. In other words, a dog has extreme proportions, so a maximum amount of mass has been packed in a small frame. Keep in mind that it differs a lot from other bullies because this particular dog doesn’t have a single standard breed, while there are several bulldogs in its lineage.

Split-screen digital illustration with one side providing a close-up view of a Micro Bully's smooth, short coat, emphasizing its sheen and color variations. The other side presents a simplified DNA chart, indicating genes responsible for coat color.

Micro Bully Genetics and Coat Color

If you are planning to breed a micro bully, or you are thinking about what the results of a certain dog cross might be, then it is important that you have knowledge of the micro bully genetics. The most important aspect to remember is that half of the genes of the puppies are inherited by their mothers, while the other half is from the fathers. It means that the gene pairs are formed by combining the two genes, and they ultimately determine the eye colour, coat colour and numerous other traits.

You will find all the micro bully colours beautiful, and as a dog parent, you will consider your pet the most beautiful one. These days, the highly prized one is the tricolour or a blue micro bully. You must remember that albinos and merles can be prone to health-related issues, so it is better not to go for these breeds. When you consider the micro bully gene pool, you will be able to see enormous diversity. So, it is up to you to choose the micro bully genetics that promotes strength and good health, and not only good looks.

Digital illustration of two Micro Bullies side by side against a neutral backdrop. The left dog showcases a dominant coat color, while the right one displays a recessive hue. Above them, a genetic chart depicts dominant genes in uppercase and recessive genes in lowercase.

Recessive and Dominant Genes

If you are interested in tricolours, then it is important that you go for the tan point micro bully genetics. These are recessive, which means that they have to be inherited first from the mother and then the father before being expressed. If you have a little knowledge about genetics, you must be aware that the gene is passed from the parents to the pup. If both the male and the female come with tan points, then it is obvious that both will pass the gene.

When the genes are dominant, they tend to overpower the recessive gene effect. This overpowering effect also has roots in Micro bully genetics. If your micro bully is black in colour, then you can be sure that there must be at least a single set of black genes that is dominant. The paired gene can be hidden, but you will be able to see the expression in the offspring if it happens to pair with a recessive gene.

Pictorial pie chart illustration set against a soft background, showcasing probability percentages of specific gene combinations in Micro Bullies. Surrounding the chart are images of puppies, each representing a particular genetic outcome, with a highlighted segment and puppy showcasing the tricolor combination.

Gene Combination Probabilities in a Micro Bully

When we cross a tricolour with a non-tricolour gene, then there are chances that the puppy will be tricolour. In micro bully genetics, the probability can be the same for every fertilised ovum. In that case, there is quite a possibility that at least half of the puppies have tricolour. On the other hand, when two tricolour carriers are crossed, you can be sure that there is a tricolour in one of the parents.


Micro bully has a highly desired dog breed lineage, which is why it is an intelligent, beautiful and friendly dog breed. When we look at the micro bully genetics, we can understand that, like various designer-cross breeds of dogs, when you cross the American bully and the Patterdale Terrier, you can keep the main physical features while also including some desired characteristics. This is the reason why the majority of people would love to own it because it gives you the smallest and the strongest version of a Bully available out there.