Certified in Public Health (CPH) Practice Exam

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How many pairs of autosomes do humans have?

The correct answer is: 22

Humans have a total of 22 pairs of autosomes, which are the chromosomes that do not directly determine sex. In addition to these, humans also have one pair of sex chromosomes, making the total number of chromosome pairs 23. Each pair consists of one chromosome inherited from each parent. The 22 pairs of autosomes contain the majority of our genetic information and are responsible for various traits and functions that are not associated with sex differentiation. Understanding the makeup of chromosomes is crucial in fields like genetics and public health, especially when studying hereditary diseases and genetic predispositions.