Of the contributions made during the essayist period three…
““Of the contributions made during the essayist period three call for notice: Weismann deserves mention for his useful work in asking for the proof that "acquired characters" or, to speak more precisely, parental experience can really be transmitted to the offspring. The ocurrence of progressive adaptation by transmission of effects of use had seemed so natural to Darwin and his contemporaries that no proof of the physiological reality of the henomenon was thought necessary. Weismann's challenge revealed the utter inadequacy of the evidence on which the beliefs were based. They are doubtless isolated observations which may be interpreted as favouring the belief in these transmissions, but such meagre indications as exist are by general consent admitted to be too slight to be of much assistance in the attempt to understand how the more complex adaptive mechanisms arose.””
About This Quote
This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.
Weismann argued that parental experiences could be inherited, challenging Darwinian assumptions and highlighting weak evidence for such transmission.
In simple terms: Weismann questioned inherited acquired traits, showing evidence was thin.
Key Takeaway
Question inherited trait claims critically.
Themes
science
inheritance
evolution
history of science
Mood
skeptical
inquisitive
Type
historical
analytical
When to use this quote
- academic debate
- biology curricula
- research proposals
- public science communication
Key Concepts
Lamarckism
Darwinism
genetics
epigenetics
Questions to Reflect On
- How strong is modern evidence for epigenetic inheritance?
- What experiments could settle the debate?
A Different Perspective
Evidence for inheritance of acquired traits remains controversial.