Which chromosomal change is represented?
deletion

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

if you know your abc's you should be able to get your answer or just use google

not always but somethings can be reproduced in a laboratory.