Sickle cell anemia is commonly found among Caucasians

Thalassemia is a blood disorder that causes the body to have less hemoglobin

Tay Sach's disease occurs most often in people of Jewish ancestry.

It is a diagnostic test wherein amniotic fluid is aspirated to check for chromosomal abnormality

If gene markers for both parents match, it can result to a medical condition of the offspring.

Chorionic villi sampling can be done as early as 10th-13th week AOG.

An allele codes for a specific gene

A genotype is the "outward expression of a gene"

The dominant trait is the one usually expressed.

Humans have 23 chromosomes pair, 22 sex chromosomes and 1 autosome

In autosomal dominant disorder, only a single disease gene is needed to have the disease

Most X-linked inherited disorders are dominant in nature.

Mothers with X-linked disorder will have sons with 50% having the disorder and daughters 50% carriers.

Fathers with an X-linked disorder will not have sons that will inherit the disorder but daughters will be carriers.