Note BR — Chapter V · HEREDITY AND THE ORIGIN OF VARIATIONS.
Reading edition
One parthenogenetic form—the drone—has been shown by Blochmann to extrude a second polar cell. This observation is in serious opposition to Dr. Weismann's theory.
Reading edition
One parthenogenetic form—the drone—has been shown by Blochmann to extrude a second polar cell. This observation is in serious opposition to Dr. Weismann's theory.