The work took place in 1955, and was published in 1956. The karyotype of humans includes only 46 chromosomes.

Who developed karyotyping?

The name was coined by another German anatomist, von Waldeyer in 1888. The next stage took place after the development of genetics in the early 20th century, when it was appreciated that the set of chromosomes (the karyotype) was the carrier of the genes.

When was chromosome analysis first used?

In 1870, German anatomist Walther Flemming introduced aniline staining to observe chromosomes during cell division for the first time.