Usage History of 'karyotypes'

The following chart shows how frequently 'karyotypes' appeared in printed materials over time. For example, the word 'karyotypes' occurred 2 times in books in 1928 and 2,515 times in 2008. From 1928 to 2008, the word 'karyotypes' was used a total of 120,643 times in books scanned by Google. See Reference: Google Ngram project.

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