The Meaning Behind Flowers. Throughout time, humans have given special meanings to flowers. Ancient Egyptian, Greek, Roman, and Chinese cultures have all included written records of their assignment of meanings to certain flowers.
Albinism is caused by a mutation in one of several genes. Each of these genes provides instructions for making one of several proteins involved in the production of melanin.Melanin is produced by cells called melanocytes, which are found in your skin and eyes.ypes of albinism. Types of albinism, based mainly on which mutated gene caused the disorder, include: Oculocutaneous albinism. Oculocutaneous (ok-u-low-ku-TAY-nee-us) albinism is caused by a mutation in one of four genes.
Most people with albinism are born to parents without the condition, but both parents must carry a copy of the defective gene and both must pass on that copy to their child. Albinism is a recessive trait,meaning that if a person inherits even one good copy of the gene, he or she will not have the condition.Each time parents who both carry the trait have a child, there is a 25 percent chance that the child will have albinism regardless of whether it is a boy or a girl. Type 1 albinism: This form of albinism is characterized by almost no pigmentation and is caused by a defect in a gene for an enzyme * that makes pigment. 2  Type 2 albinism: People with Type 2 albinism usually have some pigmentation; this type is caused by a defect in a gene called the P gene.