Support fewer of the leaves.

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Nyctalopin is a protein located on the surface of photoreceptor-to-ON bipolar cell synapse in the retina. It is composed of 481 amino acids. and is encoded in human by the NYX gene. This gene is found on the chromosome X and has two exons. This protein is a leucine-rich proteoglycan which is expressed in the eye, spleen and brain in mice. Mutations in this gene cause congenital stationary night blindness in humans (CSNB). which is a stable retinal disorder. The consequence of this mutation results in an abnormal night vision. Nyctalopin is critical due to the fact that it generates a depolarizing bipolar cell response due to the mutation on the NYX gene. Most of the time, CSNB are associated to hygh myopia which is the result of a mutation on the same gene. Several mutations can occur on the NYX gene resulting on many form of night blindness in humans. Some studies show that these mutations are more present in Asian population than in Caucasian population. A mouse strain called nob carries a spontaneous mutation leading to a frameshift in this gene. These mice are used as an animal model for congenital stationary night blindness.

Chenopodium nuttalliae is a species of edible plant native to Mexico. It is known by the common names huauzontle and Aztec broccoli. Other variations of the name include huauhzontle, huazontle, huanzontle, and guausoncle. It is related to other commonly-consumed plants such as quinoa, amaranth, and epazote, as well as the common American weeds goosefoot and lambsquarters. The plant grows upright branches with red tinted green leafy stems. Huauzontle stems superficially resemble baby broccoli, although the stems are much thinner, and support fewer of the leaves.