Name the members of each pair of similar chromosomes
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In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
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The two pair members are called homologous chromosomes , or homologs. ... Each copy is known as a chromatid ; thus, each chromosome is composed of two identical sister chromatids. During meiosis, homologous chromosomes line up and exchange segments, a process called crossing over.
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