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The inheritance pattern followed by blue eyes was previously assumed to be a Mendelian recessive trait, though this has been shown to be incorrect. Eye color inheritance is now recognized as a polygenic trait , meaning that it is controlled by the interactions of several genes.
Blue cone monochromacy (BCM) is an inherited eye disease that causes severe color blindness, poor visual acuity, nystagmus, hemeralopia, and photophobia due to the absence of functional red (L) and green (M) cone photoreceptor cells in the retina. BCM is a recessive X-linked disease and almost exclusively affects XY karyotypes.
P protein, also known as melanocyte-specific transporter protein or pink-eyed dilution protein homolog, is a protein that in humans is encoded by the oculocutaneous albinism II (OCA2) gene. [5] The P protein is believed to be an integral membrane protein involved in small molecule transport, specifically of tyrosine —a precursor of melanin .
[4] [5] Additionally, individuals may need corrective visual aids for their visual acuity of 1/10 or less with intense photophobia. [4] Visual aids can both improve vision or protect eyes from bright lights. [5] These visual aids can be adjusted for based on individual needs. [citation needed]
Broadbent, a prominent HIV/AIDS activist known for her inspirational talks in the 1990s as a young child to reduce the stigma surrounding the virus she was born with, has died. She was 39. (AP ...
By Susana Victoria Perez, Buzz60 If you think you have blue eyes, think again, they are actually tricking you! All eyes are really brown. According to CNN, Dr. Gary Heiting, a licensed optometrist ...
After Aretria was born on 20 October 2022, her big eyes became a source of many compliments from friends and family. Her parents even lovingly likened their little one to a cartoon bug, thinking ...
Oculocutaneous albinism is a form of albinism involving the eyes , the skin (-cutaneous), and the hair. [1] Overall, an estimated 1 in 20,000 people worldwide are born with oculocutaneous albinism. [1] OCA is caused by mutations in several genes that control the synthesis of melanin within the melanocytes. [2]