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 genetics, the term dominant gene refers to the allele that causes a phenotype that is seen in a heterozygous genotype. Every person has two copies of every gene, one from mother and one from father. If a genetic trait is dominant, a person only needs to inherit one copy of the gene for the trait to be expressed. Dominance/recessiveness refers to phenotype, not genotype. Consider sickle cell anemia as an example. The sickle cell genotype is caused by a single base pair change in the beta-globin gene.