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Stork bites occur in a significant number of newborns, with estimates ranging from 22–40 percent [2] to 40–70 percent; [3] they are reported more frequently for white babies than for infants of other races. [2] They result from a dilation of capillaries in the skin, [3] and may become darker when the child cries or strains. [4]
Mongolian spot is a congenital developmental condition—that is, one existing from birth—exclusively involving the skin.The blue colour is caused by melanocytes, melanin-containing cells, that are usually located in the surface of the skin (the epidermis), but are in the deeper region (the dermis) in the location of the spot. [6]
Stork bite. Colloquially called a "stork bite", "angel's kiss" or "salmon patch", telangiectatic nevus appears as a pink or tanned, flat, irregularly shaped mark on the knee, back of the neck, and/or the forehead, eyelids and, sometimes, the top lip. The skin is not thickened and feels no different from anywhere else on the body; the only ...
Marie–Unna hereditary hypotrichosis ... (stork bite) Nevus lipomatosus ... Genodermatoses are inherited genetic skin conditions often grouped into three categories: ...
A melanocytic nevus (also known as nevocytic nevus, nevus-cell nevus, and commonly as a mole) [1] [2] is usually a noncancerous condition of pigment-producing skin cells. It is a type of melanocytic tumor that contains nevus cells. [2]
Heritability increases when genetics are contributing more variation or because non-genetic factors are contributing less variation; what matters is the relative contribution. Heritability is specific to a particular population in a particular environment.
In the field of molecular biology, the ETS (E26 transformation-specific [2] or Erythroblast Transformation Specific [3]) family is one of the largest families of transcription factors and is unique to animals. There are 28 genes in humans, [4] 27 in the mouse, 10 in Caenorhabditis elegans and 9 in Drosophila.
The missing heritability problem was named as such in 2008 (after the "missing baryon problem" in physics).The Human Genome Project led to optimistic forecasts that the large genetic contributions to many traits and diseases (which were identified by quantitative genetics and behavioral genetics in particular) would soon be mapped and pinned down to specific genes and their genetic variants by ...