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Yes. If the parents have the potential to be carriers of the disease, they can have a child with the disease. To show you my logic, follow this. T is normal, but t is tay sachs. If the parents are Tt and Tt, they can have a 25% chance of a child having the illness.
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
You should be worried if the product claims a miracle cure