Question

who described the hereditary unit as 'pangen'?

Answer 1

Solution:

Charles Darwin described the hereditary unit as a pangen. According to his theory, the organic particle named gemmules is transformed into egg which further helps in the development of the embryo.

This organic particle only contains the hereditary information which is carried further from the gametes to the egg.

Answer 2

Answer:

Hugo de Vries coined the term "pangen" for the ‘smallest particle’ of hereditary characteristic.  

Explanation:

The Dutch scientist published a book in 1889 called ‘Intracellular Pangenesis’ where he postulated that different features or characters have different hereditary carriers. These are known as pangens.

This theory supported the "Theory of Pangenesis" by Charles Darwin that had independently postulated the same. The work of Hugo de Vries proved the theories of ‘dominance and recessiveness’, ‘segregation and independent’ assortment.