The inherited disorders have been classified into the autosomal disorders and sex linked disorders. These disorders have been further classified into the dominant and recessive disorder.
The X linked recessive pedigree means that the trait will skip the generation. The disease is passed down from mothers to their sons and male are more affected than female. The heterozygous female acts as a carrier for the X linked recessive trait. The female should be homozygous recessive or have both the X chromosome affected to show the trait.
Jackie Robinson became the first "black" to play professional baseball in the United States. He proved that black people are also as competitive as those with white people. </span>
