Defects Due To Cat Mutations

Another gene with unfortunate second effects is the Siamese, which can produce a defect on the nervous connections between the eyes and the brain. This disturbs the normal binocular sight, which produces a blurred image and difficulties for calculating the distances.

With the intention of resolving this obstacle, some Siamese develop strabismus, a defect specified as such in the norms of feline exhibitions.

Strabic Siamese have a place on the market of domestic animals, but when buying it you must be conscious that they will go through all their life in a disadvantageous situation.

Some genes have the sad fame of causing problems. An example is the M dominant gene that is produced by the Manx cat, a breed without a tail or with barely any sight of it.

The mating of homozigotic Manx always causes the death of the whelps in the womb and the heterozigotic mating sometimes bring mortal malformations.

In general, the gene is particularly unstable, as the fact that whows that the litter of a Manx may include whelps with almost normal tails, others with traces of a tail and some without tails.

As pointed out by an expert, the congenital problems associated to the Manx; would surely be prevented from being recognized as a race if it where a modern innovation.”

He is safe from this infamy because it isn’t any invention from a breeder, but a spontaneous mutation produced 300 years ago, that was consolidated due to the isolation of the lie of man, where it originated.

A product of its surroundings?
The genes that determine the visible characteristics are only a few from the many thousands that transmit other features of feline physique. The rest conforms what could be denominated as the corporal operative systems, many almost automatic and unknown.

We only know of a few: those that affect the taste, the inclination to hunting and the grade of aggressiveness that have noticeable effects by the owner of the animal but here the nature and the breeding intervenes.

It is true that a lazy and phlegmatic female will never have good whelps for hunting mice. Likewise, farm cats produce first class hunters, generations after generations.

The first weeks of life of a cat, possibly of an intense learning, are without a doubt crucial, but we will never know if the hunting instinct is acquired by learning, is it in the genetic constitution of the cat or is due to the combination of these two factors.

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