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Calicos are also known as tricolor cats, mi-ke (meaning "triple fur") in Japanese, and lapjeskat (meaning "patches cat") in Dutch. The factor that distinguishes tortoiseshell from calico is the pattern of eumelanin and pheomelanin, which is partly dependent on the amount of white, due to an effect of the white spotting gene on the general ...
In most mammals, humans included, red hair is caused by mutations in a cell surface protein (Mc1r) that determines whether melanocytes (a type of skin cell) will produce a dark pigment or a ...
The mutation that gives male cats a ginger-colored coat and females ginger, tortoiseshell, or calico coats produced a particularly telling map. The orange mutant gene is found only on the X, or female, chromosome. As with humans, female cats have paired sex chromosomes, XX, and male cats have XY sex chromosomes.
As a result, both red cats and the patches of red on tortoiseshell cats will always show tabby patterning, though sometimes the stripes are muted—especially in cream and blue/cream cats due to the pigment dilution. The mackerel pattern and its T m allele at the tabby gene locus is dominant over the classic (or blotched) allele, T b.
Unlike we humans, cats don't have cones that are sensitive to red wavelengths — that means that they lack the light-sensitive pigments at the back of their eye that enable them to see red.
A TikTok video is melting hearts online as it shows the incredible transformation of a stray cat’s fur from dirty and matted to soft, fluffy, and radiant. The video captures a sweet moment of ...
The species has a basal rosette of long strap-like leaves, emerging at the soil's surface from a rhizome beneath. A raceme of flowers appear at the terminus of long stalks, giving the plant a height up to one metre. The tuberous form of the flower bud is yellow, becoming orange then red at the opening. [4]
In some breeds of cats, congenital sensorineural deafness is very common, with most white cats (but not albinos) being affected, particularly if they also have blue eyes. [1] The gene responsible for this defect is the KIT gene , and the disease is studied in the hope that it may shed light on the causes of hereditary deafness in humans. [ 8 ]