Important Sex Linked Disorder That Affects Humans Assignment

Important Sex Linked Disorder That Affects Humans - Assignment Example Crossing a female with the disease with a male that doesn’t have it will result in all male offspring having the disease and all females being carriers. Finally, crossing a female and a male both that have the disease will result in all offspring having it. Many genetic disorders are inherited recessively. As such the child must have two copies of the allele for it to show phenotypically. One such disorder is cystic fibrosis. This condition results in the excess build up of mucus in many organs including the lungs and liver, as well as increased susceptibility to developing infections. Without treatment, the disease often results in death at early childhood. A cross between a female carrier (Cc) and a male with the disease (CC) would result in 50% of the offspring having the disease, and the other 50% being carriers. A cross between two carriers (Cc) would result in a quarter of the offspring having the disease, half being carriers and the final quarter not inheriting the alle le. Lastly, a cross between two individuals with the disease would result in all of the offspring having the disease. ... Thus, a cross between two carriers (heterozygotes) would result in three-quarters of the offspring having the disease and one not. A cross between a female that did not have the disease and a male carrier (heterozygote) would result in half of the offspring having the disease and the other half not. Finally, a cross between two individuals with the disease depends on the genotypes of each. If both have only one copy of the disease allele, the one-quarterer of their offspring will not have the disease. However, if even one of them is homozygous, then all offspring will have the disease.