Cockapoos come in a variety of sizes and can weigh anywhere from 6 to 30 pounds. The weight of a cockapoo depends on the size of its parents.
The four types of oculocutaneous albinism each result from mutations in a single gene: TYR, OCA2, TYRP1, or SLC45A2. Changes in the TYR gene cause type 1; mutations in the OCA2 gene are responsible for type 2; TYRP1 mutations cause type 3; and changes in the SLC45A2 gene result in type 4.he four types of oculocutaneous albinism each result from mutations in a single gene: TYR, OCA2, TYRP1, or SLC45A2. Changes in the TYR gene cause type 1; mutations in the OCA2 gene are responsible for type 2; TYRP1 mutations cause type 3; and changes in the SLC45A2 gene result in type 4.
1 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.lbinism (AL-bi-niz-im) is a disorder that occurs when a person inherits various genes * that are defective in their ability to make the pigment melanin (MEL-a-nin). Melanin is the main substance that determines a person's skin, hair, and eye color.