Capable Quote by Hermann Joseph Muller
“Natural selection based on the differential multiplication of variant types cannot exist before there is material capable of replicating itself and its own variations, that is, before the origination of specifically genetic material or gene-material.”
About This Quote
Source Book: "The Biology of Evolution", 1950
Genetic material must exist before natural selection can act on variation.
In simple terms: Genes needed for selection.
Key Takeaway
Recognize the prerequisite of genetic material for evolution.
Themes
evolution
genetics
science
Mood
analytical
academic
Type
explanatory
scientific
When to use this quote
- biology classes
- research labs
- science communication
- education curricula
Key Concepts
natural selection
replication
variation
Questions to Reflect On
- What defines “material capable of replication”?
A Different Perspective
Does this exclude non‑genetic evolutionary mechanisms?
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