Haiku. Haiku is an ancient form of Japanese poetry that counts sounds, as opposed to words. Its traditional form is three lines, with five sounds in the first line, seven in the second line, and five in the third line.
Single gene disorders can be: Dominant. An abnormality occurs when only one of the genes from one parent is abnormal. If the parent has the disorder, the baby has a 50 percent chance of inheriting it. Examples include the following: Achondroplasia.
In X-linked dominant inheritance, when the mother alone is the carrier of a mutated, or defective gene associated with a disease or disorder; she herself will have the disorder. Her children will inherit the disorder as follows: 1  Of her daughters and sons: 50% will have the disorder, 50% will be completely unaffected.