macromutation
Low / SpecializedScientific / Technical
Definition
Meaning
A large-scale, significant mutation affecting a major phenotypic trait, often producing a dramatic evolutionary change in a single step.
In evolutionary biology and genetics, a mutation that causes a substantial, often abrupt, change in an organism's phenotype, as opposed to the cumulative effect of many small mutations. In broader usage, can metaphorically describe any sudden, large-scale change in a system.
Linguistics
Semantic Notes
The term implies a qualitative jump in form or function. It is often contrasted with 'micromutation' and is central to debates about gradualism vs. punctuated equilibrium in evolution.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Usage is identical in specialised scientific contexts.
Connotations
In both dialects, it carries connotations of sudden, dramatic change, potentially disruptive. In lay contexts, it may be used more metaphorically.
Frequency
Extremely rare outside of evolutionary biology, genetics, and related academic fields. Frequency is identical in UK and US scientific English.
Vocabulary
Collocations
Grammar
Valency Patterns
The [NOUN] was caused by a macromutation.A macromutation in the [GENE] led to [RESULT].Scientists debate the role of macromutation in [EVOLUTIONARY EVENT].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A macromutation in thinking (metaphorical)”
- “It would take a macromutation in policy to fix that.”
Usage
Context Usage
Business
Almost never used. Potential metaphorical use for disruptive innovation: 'The new platform represented a macromutation in our industry.'
Academic
Primary context. Used in evolutionary biology, genetics, paleontology. Discussed in theoretical frameworks like 'punctuated equilibrium'.
Everyday
Extremely rare. Would likely be misunderstood.
Technical
Precise term in genetics and evolutionary theory. Implies a specific, large-scale genetic change affecting morphology or development.
Examples
By Part of Speech
noun
British English
- The fossil record sometimes suggests the sudden appearance of forms, which some attribute to macromutation.
- Goldschmidt's 'hopeful monster' hypothesis relied heavily on the concept of macromutation.
American English
- The researcher argued that the novel trait arose from a single macromutation.
- Debates about macromutation versus gradualism continue in evolutionary biology.
Examples
By CEFR Level
- Some scientists believe complex organs like the eye could not have evolved through micromutations alone, hinting at a possible role for macromutation.
- The theory of macromutation suggests that evolutionary jumps can happen rapidly.
- While the modern synthesis emphasises gradualism, a reevaluation of macromutation's potential role in generating evolutionary novelties is underway.
- The genetic basis of the hypothesized macromutation was found to be a regulatory gene affecting early embryonic development.
Learning
Memory Aids
Mnemonic
Think 'MACRO' (large) + 'MUTATION' (change). A big, macro-sized change in genetics.
Conceptual Metaphor
EVOLUTIONARY CHANGE IS A JOURNEY (gradual - micromutation) vs. A LEAP (sudden - macromutation).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'мутация' alone. Ensure the 'macro-' (крупная, масштабная) aspect is translated: 'макромутация' is the direct equivalent.
- Avoid using 'большая мутация' in formal scientific translation; 'макромутация' is the standard term.
Common Mistakes
- Using it to describe any large change outside of genetics/evolution.
- Pronouncing it as /ˈmæk.rə.mjuː.teɪ.ʃən/ (stress on first syllable). Correct stress is on 'mu' or 'ta'.
- Confusing it with 'macroevolution' (a pattern) - macromutation is a proposed mechanism.
Practice
Quiz
Which concept is most directly opposed to 'macromutation' in evolutionary theory?
FAQ
Frequently Asked Questions
No. Macroevolution refers to large-scale evolutionary patterns (e.g., speciation, extinction events). Macromutation is a proposed genetic *mechanism* that could, in theory, cause macroevolutionary changes rapidly.
They are a subject of debate. The mainstream Modern Synthesis view historically favoured gradualism. However, discoveries in evolutionary developmental biology (evo-devo) have renewed interest in how large-effect mutations in regulatory genes could produce significant phenotypic shifts, bringing concepts akin to macromutation back into discussion.
Only metaphorically. In business or tech, one might refer to a 'macromutation in the market' to describe a disruptive, paradigm-shifting innovation, but this is figurative and jargonistic.
The 'hopeful monster' concept proposed by Richard Goldschmidt in the 1940s. He suggested that large, systemic mutations (macromutations) could occasionally create viable, radically new organisms that might be successful if the environment changed.