![]() ![]() of chromosomes do not match, and the pair is called XY instead of XX. In the set shown on the opposite page, the last pair of chromosomes match, showing that they came from a female. Things they need to do to make our bodiesĪlmost every cell in your body contains a set of chromosomes, where your genes are stored. Inside cells are the smallestīody parts of all - the genes that make us Parts are made up of millions of microscopic Tubes, tendons, tissues and other body parts,Įach with its own job to do. It's made up of hundreds of different organs, ![]() The X-rayon this page shows the ribs, backbone and collarbone inside a human torso.
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