heterokaryosis: meaning, definition, pronunciation and examples
C2Specialized Technical / Academic
Quick answer
What does “heterokaryosis” mean?
The condition in which a cell contains two or more genetically different nuclei.
Audio
Pronunciation
Definition
Meaning and Definition
The condition in which a cell contains two or more genetically different nuclei.
In mycology and cell biology, a transient or stable state where genetically distinct nuclei coexist and replicate within a common cytoplasm, often occurring in fungi after hyphal fusion.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. Term is identical in both varieties due to its technical Greek origin.
Connotations
Neutral, precise scientific term in both contexts.
Frequency
Extremely low frequency in general language. Used with equal rarity in UK and US academic/technical literature.
Grammar
How to Use “heterokaryosis” in a Sentence
Heterokaryosis occurs in [organism].Researchers observed heterokaryosis following [event].The [species] exhibited heterokaryosis.Vocabulary
Collocations
Examples
Examples of “heterokaryosis” in a Sentence
adjective
British English
- The heterokaryotic mycelium showed unusual growth patterns.
American English
- Heterokaryotic cells were isolated for further analysis.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core term in specific mycology and genetics papers, textbooks, and lectures.
Everyday
Never used.
Technical
Essential terminology in fungal genetics, phytopathology, and some cell biology research.
Vocabulary
Synonyms of “heterokaryosis”
Neutral
Weak
Vocabulary
Antonyms of “heterokaryosis”
Watch out
Common Mistakes When Using “heterokaryosis”
- Misspelling as 'heterokaryoses' (plural is 'heterokaryoses', pronounced /-siːz/).
- Confusing with 'heterozygosis' (different genetic condition).
- Using as a general synonym for 'hybrid'.
FAQ
Frequently Asked Questions
No. Heterokaryosis involves multiple, genetically distinct haploid nuclei sharing a cytoplasm. A diploid cell has one nucleus containing two sets of chromosomes.
It is extremely rare in complex multicellular organisms. It is a defining feature of many fungal life cycles. Some animal cells (e.g., skeletal muscle fibers) are multinucleate but are usually homokaryotic (genetically identical nuclei).
It allows genetic exchange and complementation without sexual reproduction in fungi, influencing pathogenicity, adaptation, and is crucial for the parasexual cycle.
Stress the fifth syllable: het-er-o-KAR-y-OH-sis. The 'karyo' part relates to 'nucleus' and is key.
The condition in which a cell contains two or more genetically different nuclei.
Heterokaryosis is usually specialized technical / academic in register.
Learning
Memory Aids
Mnemonic
HETERO (different) + KARYON (nucleus) + OSIS (condition) = 'condition of different nuclei'.
Conceptual Metaphor
A shared flat with separate, distinct tenants (nuclei) coexisting in one living space (cytoplasm).
Practice
Quiz
In which field is the term 'heterokaryosis' most precisely used?