The disease that characterized by the absence of <span>a thymus, resulting in recurrent infections, heart defects, and characteristic facial features is: DiGeorge Syndrome
The deletion from Chromosome 22 led to the imperfect development of various body system which would lead to various health issues in the future.</span>
It is called rationalization
In tennis, there are a variety of types of shots answer which can be categorized in various ways. The grip you place on will help you have different types of shots, the lower your grip means that the ball is most likely going to be a ground stroke.
What is your question ? I am a bit confused