The ABO system consists of A, B, AB, and O blood types. People with type A have antibodies in the blood against type B. People with type B have antibodies in the blood against type A. People with AB have no anti-A or anti-B antibodies.
Developmental dyslexia, or specific reading disability, is a disorder in which children with normal intelligence and sensory abilities show learning deficits for reading.
There is some evidence to suggest genetics play a part in developmental dyslexia (you are born with it). If a child has one dyslexic parent then a boy has a 50% chance of being dyslexic, a girl has a 25% chance.However, it sometimes skips the female children but they become carriers for their children.he research is pretty clear that people develop dyslexia because they inherited the way their brain is wired from their family genes. In other words, if your parents or other relatives had a history of reading difficulty, you are more likely to have a problem with reading, spelling and writing as well.