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This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

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The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

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Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

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Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..