If you have any non-numeric character in the character variable the output will be missing and your log will contain a. NOTE: Invalid Data message everytime you have a non-numeric character in your data. So you could get 10, 20, 50 or more notes in your log.
1. A man with hemophilia (a recessive, sex-linked blood clotting disorder) has a daughter of normal phenotype. She marries a man who is normal for the trait. XH-normal. Xh-hemophilia. Since this is a recessive disorder, one XH allele will give a normal phenotype. When the offspring do not have a XH and only have the Xh allele/alleles they will have the hemophilia condition. Man's genotype is XhY. Daughter's genotype is XHXh (She got the Xh from her father.
Thus, males can have a disease like hemophilia if they inherit an affected X chromosome that has a mutation in either the factor VIII or factor IX gene. Females can also have hemophilia, but this is much rarer. In such cases both X chromosomes are affected or one is affected and the other is missing or inactive.In these females, bleeding symptoms may be similar to males with hemophilia. A female with one affected X chromosome is a carrier of hemophilia. Sometimes a female who is a carrier can have symptoms of hemophilia.In addition, she can pass the affected X chromosome with the clotting factor gene mutation on to her children.Learn more about the inheritance pattern for hemophilia.n such cases both X chromosomes are affected or one is affected and the other is missing or inactive. In these females, bleeding symptoms may be similar to males with hemophilia. A female with one affected X chromosome is a carrier of hemophilia. Sometimes a female who is a carrier can have symptoms of hemophilia.