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Principles of Inheritance and Variation
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Solution:
The X body of Henking was observed in half of the
sperms during spermatogenesis. During his experiments
on insects, Henking found the traces of a nuclear structure
all through the process of spermatogenesis which he
named it as X body. He also observed that, after
spermatogenesis, exact half of the sperms received this X
body, while the remaining half did not. Later, scientists
found out that this X body of Henking was actually a
chromosome and hence, named it X-chromosome.