____ are made up of segments of DNA
Genes
Genes are made up of segments of DNA. Genes are the basic physical and functional units of heredity that are passed on from parents to offspring. Each gene carries the specific instructions for making a particular protein or performing a specific function in the body. The sequence of the DNA within each gene determines the characteristics or traits that are expressed in an organism such as eye color, hair color, height, and susceptibility to certain diseases. The study of genes and their functions is known as genetics, which is a critical and rapidly advancing field with many applications in medicine, agriculture, and biotechnology.
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