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To fully understand the complex subject of genetics it is important to know something about cells, chromosomes, and DNA as all living things are made up of cells - the basic building block of life. A human body contains millions and millions of cells. Genetics allows us to understand how many medical conditions, such as thalassemia, are passed on within families. Blood tests and genetic investigations can help us determine whether an individual has the disease or is a carrier. Our improved understanding of the causes of a condition may even raise the possibility of future gene-based therapies that may offer a cure.
Isha Mittal
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