what are the XX and XY known as ?
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Answer:The sex chromosomes are referred to as X and Y, and their combination determines a person's sex. Typically, human females have two X chromosomes while males possess an XY pairing. This XY sex-determination system is found in most mammals as well as some reptiles and plants
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they are chromosome . human body have 23 pair of chromosome. these are the 23 Rd pair .
when xy is produced boy is born . and when xx means girl is born .
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hope it helps you . not searched by Google .
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