That person will exhibit <span>monosomy,</span>
The answer is B.
Sex cells are formed by a process called meiosis, not mitosis.
It would be an oncogene, these can be inherited mutations of proto-oncogenes that cause the oncogene.
If the immune system fails to produce proteins (Antibodies) it can cause a disease. This is because our immune systems are very needed so if our immune system decides to fail to produce its proteins, our body will become overwhelmed and could possibly cause us to die! :(