autosome
C1/C2 (Technical, academic, medical, scientific)Technical, Scientific, Academic
Definition
Meaning
Any chromosome that is not a sex chromosome; a chromosome not involved in sex determination.
In genetics and biology, an autosome refers to any of the numbered chromosomes (e.g., 1-22 in humans) as opposed to the sex chromosomes (X and Y).
Linguistics
Semantic Notes
The term is used exclusively in genetics and related biological sciences. It distinguishes the majority of chromosomes from the sex chromosomes.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. Pronunciation differs slightly.
Connotations
Identical technical connotation in both varieties.
Frequency
Extremely rare outside specialised biological or medical contexts in both regions. Equally low frequency.
Vocabulary
Collocations
Grammar
Valency Patterns
The (adjective) autosome (verb)...Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Virtually never used.
Academic
Common in genetics, molecular biology, and medical research papers and textbooks.
Everyday
Almost never encountered in everyday conversation.
Technical
The primary context of use. Used precisely in genetics, cytogenetics, genomics, and clinical diagnostics.
Examples
By Part of Speech
adjective
British English
- The condition is autosomal, meaning the faulty gene is located on an autosome, not the X chromosome.
American English
- This is an autosomal trait, carried on one of the 22 autosomes.
Examples
By CEFR Level
- Humans have 46 chromosomes, including two sex chromosomes and 44 autosomes.
- The genetic disorder is autosomal recessive, so both copies of the gene on the autosome must be faulty for the disease to appear.
- Genome-wide association studies often focus on identifying single-nucleotide polymorphisms across the autosomes to find links to common diseases, excluding the sex chromosomes from the initial analysis.
Learning
Memory Aids
Mnemonic
Think AUTOmatic for body functions: AUTOsomes are the chromosomes that control general body traits automatically, unlike the sex chromosomes.
Conceptual Metaphor
The autosomes are the 'standard issue' chromosomes of the body's cellular library, while sex chromosomes are the 'special edition'.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation "аутосома" is the correct scientific term (аутосома).
- Do not confuse with "autonomous" or "automobile" due to the 'auto-' prefix.
Common Mistakes
- Misspelling as 'autozome' or 'autosom'.
- Using it to mean 'autonomous body'.
- Confusing it with 'chromosome' without specifying the non-sex aspect.
Practice
Quiz
What is an autosome?
FAQ
Frequently Asked Questions
Humans have 22 pairs (44 total) of autosomes, numbered 1 through 22.
No, it is a highly technical term used almost exclusively in genetics, biology, and medicine.
'Autosome' is a noun referring to the chromosome itself. 'Autosomal' is the adjective form, used to describe traits, disorders, or inheritance patterns related to autosomes.
Yes, all animals with chromosomal sex determination have autosomes. The number and structure vary by species.