Answer:
Peptic ulcer disease occurs when open sores, or ulcers, form in the stomach or first part of the small intestine. Many cases of peptic ulcer disease develop because a bacterial infection eats away the protective lining of the digestive system. People who frequently take pain relievers are more likely to develop ulcers.
Explanation:
Carcinogenesis or carcinogens cause cancer in the environment.
Answer:
A) Humans without this gene exhibit problem with oxygen binding in their red blood cells.
Explanation:
- Oxygen binds to red blood cells because of their hemoglobin component. It is a protein found in red blood cells.
- Each hemoglobin molecule is able to bind to four oxygen molecules.
- If the gene controlling hemoglobin production is absent in humans, the red blood cells will not be able to bind to oxygen.
- Hence, if the gene given in diagram is removed and it results in difficulty in binding of oxygen to red blood cells, that gene might be involved in hemoglobin production.
Answer:
B) the fuel for nuclear fusion is often uranium
D) nuclear fusion is used to generate electricity at nuclear power plants
Explanation:
Nuclear fusion is a reaction which involves two or more atomic nuclei being combined to form one or more different atomic nuclei and subatomic particles. The process of Nuclear fusion releases a large amounts of energy.
Nuclear fusion is used to generate electricity at nuclear power plants and it doesn’t require Uranium as its major reactant.
