Another example, existing when a person does not create the protein dystrophin [DIS- truh-fin], is known as Duchenne [doo-shen]  muscular dystrophy.
An unusual type of these entities is holandric, which probably is responsible for some infertility. A genetically dominant example, which leads to severe kidney disease and poor hearing, is Alport syndrome. Another example, existing when a person does not create the protein dystrophin [DIS- truh-fin], is known as Duchenne [doo-shen]  muscular dystrophy. One type of experiment on these was the reciprocal cross, which was used to study the occurrence of white eyes in fruit flies and can be explained using Punnett squares. A very common example is red-green color blindness. Name these characteristics which are passed on differently by fathers and mothers, usually because they are located on the X chromosome.
An unusual type of these entities is holandric, which probably is responsible for some infertility.
sex-linked trait or disorder [accept similar answers including sex and a form of the word link; prompt on genetic or chromosomal or similar answers]