Definition & Pronunciation
In biology, asexually describes reproduction from a single organism without fertilization or the fusion of egg and sperm cells. The resulting offspring are often genetically very similar to the parent, although mutations can create differences.
In descriptions of human behavior or relationships, asexually may mean without sexual intention, attraction, or involvement. However, it should not automatically be used to describe an asexual person, because asexuality is a sexual orientation and does not necessarily determine someone’s behavior, relationships, or reproductive choices.
Sexopedia Quick Reference
Asexually
Note: Without fertilization and through asexual reproduction apply mainly to biology. Nonsexually is broader but may sound less natural in some sentences.
Note: The appropriate opposite depends on whether the context concerns biology, behavior, attraction, or relationships.
Easy Explanation
A plant that reproduces from a cutting reproduces asexually because it does not need fertilization. A person may also describe an interaction as occurring asexually when it contains no sexual intention or activity.
The exact meaning depends on whether the subject is biology, behavior, attraction, or identity.
Grammatical Formation and Usage
Examples include:
- The organism reproduces asexually.
- Some plants can spread asexually.
- The characters relate to each other asexually.
- The relationship was portrayed asexually.
The word is formed from:
- a-, meaning without or not;
- sexual, relating to sex or sexual reproduction;
- -ly, an ending that forms an adverb.
The related adjective is asexual:
- an asexual organism;
- asexual reproduction;
- an asexual person.
The adverb should be used only when it clearly describes an action, process, or manner.
Asexually in Biology
A single organism may produce offspring through processes such as:
- binary fission;
- budding;
- fragmentation;
- vegetative propagation;
- spore formation;
- parthenogenesis in some species.
The specific process depends on the organism.
Examples include:
- Bacteria commonly reproduce asexually through binary fission.
- Yeast may reproduce asexually by budding.
- Some plants reproduce asexually from stems, roots, or leaves.
Asexual and Sexual Reproduction
Sexual reproduction combines genetic material from reproductive sources, often through the joining of egg and sperm cells.
Asexual reproduction may:
- occur rapidly;
- require only one organism;
- produce genetically similar offspring;
- support rapid population growth.
Sexual reproduction may:
- create more genetic variation;
- involve meiosis and fertilization;
- combine genetic material from different sources;
- produce offspring with new genetic combinations.
Neither method is universally better. Each has advantages and limitations in different environments.
Asexually and Without Fertilization
However, the terms are not always identical. Some organisms reproduce through unusual processes that require more precise scientific description.
For example, parthenogenesis involves development from an unfertilized egg. It is generally treated as a form of asexual reproduction, even though an egg cell is involved.
Scientific writing should name the specific reproductive mechanism when that detail matters.
Asexually and Genetically Identical
However, they are not always perfectly identical. Differences may arise through:
- mutations;
- developmental conditions;
- environmental influences;
- genetic changes during cell division;
- epigenetic variation.
Therefore, asexually produced does not always mean completely identical in every characteristic.
Asexually in Plants
This may occur naturally through:
- runners;
- bulbs;
- tubers;
- rhizomes;
- roots;
- detached plant parts.
People may also reproduce plants asexually through:
- cuttings;
- grafting;
- layering;
- tissue culture.
A new plant produced from a cutting usually receives its genetic material from one parent plant.
Asexually in Microorganisms
For example:
- bacteria divide through binary fission;
- yeast may reproduce through budding;
- some protists divide into two or more cells;
- some fungi produce asexual spores.
Some organisms can reproduce both sexually and asexually, depending on their species, life cycle, and environmental conditions.
Asexually in Human-Related Contexts
Examples include:
- The characters were presented as caring for each other asexually.
- They shared affection but related asexually.
- The story portrays the partnership asexually rather than romantically.
This use is less common than the biological meaning and may sound technical. Clearer alternatives may include:
- without sexual involvement;
- in a nonsexual way;
- without sexual attraction;
- as a platonic relationship.
The best wording depends on the intended meaning.
Asexually and Asexuality
Asexuality is a sexual orientation generally associated with experiencing little or no sexual attraction.
These ideas should not be confused.
An asexual person may:
- form romantic relationships;
- experience emotional intimacy;
- enjoy affection or touch;
- choose to have sex;
- avoid sexual activity;
- marry or remain single;
- become a parent or remain child-free.
A person may also behave asexually in a particular situation without identifying as asexual.
Asexually and Celibately
Celibately means while abstaining from sexual activity, often as a deliberate choice.
A celibate person may still experience sexual attraction. An asexual person may or may not choose celibacy.
Compare:
- The organism reproduces asexually.
- The religious leader chose to live celibately.
- The person identified as asexual but did not describe their relationship as celibate.
The words are not interchangeable.
Asexually and Platonically
Asexually may mean without sexual involvement, but it does not necessarily exclude romance.
For example, an asexual person may have a romantic relationship that is sexually inactive. That relationship may be romantic but not platonic.
Use platonically when friendship without romance is the main meaning.
Tone and Register
- scientific;
- biological;
- academic;
- technical;
- neutral.
In discussions of people and relationships, it may sound impersonal or ambiguous. Expressions such as without sexual involvement or in a nonsexual way are often clearer.
When discussing a person’s orientation, it is usually better to say:
- “They are asexual.”
- “They identify as asexual.”
Saying that someone “lives asexually” may make unnecessary assumptions about their private behavior.
Common Misunderstandings
The word is often used in biology and may have no connection to human orientation.
Asexual organisms never have genetic variation.
Mutations and other changes can still produce variation.
An asexual person must behave asexually.
Orientation does not dictate every behavior or relationship choice.
Asexually and celibately mean the same thing.
Celibacy is abstinence from sex, while asexuality concerns sexual attraction.
Asexually means without affection or intimacy.
Nonsexual relationships may include deep love, touch, commitment, and emotional closeness.
Common Collocations
- reproduce asexually;
- produced asexually;
- spread asexually;
- develop asexually;
- propagated asexually;
- divide asexually;
- relate asexually;
- portrayed asexually.
Real-Life Examples
- A bacterium divides asexually into two cells.
- A gardener grows a new plant from a cutting.
- Yeast reproduces asexually through budding.
- A species switches between sexual and asexual reproduction.
- A story portrays two characters in a nonsexual partnership.
- An asexual person forms a deeply affectionate romantic relationship.
- A researcher compares organisms produced sexually and asexually.
- A learner distinguishes the adverb asexually from the identity term asexuality.
Sample Sentences
- Many bacteria reproduce asexually.
- The plant can be propagated asexually from cuttings.
- The organism divides asexually under favorable conditions.
- Asexually produced offspring are often genetically similar to the parent.
- Some species reproduce both sexually and asexually.
- The characters’ relationship was portrayed asexually.
- An asexual person does not necessarily avoid every form of sexual activity.
- Asexually and celibately are not exact synonyms.
- Genetic mutations can occur in organisms produced asexually.
- The meaning of asexually depends on its biological or social context.
Connection to Sexuality
A person who identifies as asexual may still experience romantic attraction, seek emotional closeness, enjoy touch, enter relationships, or choose sexual activity for personal reasons. Asexual people are diverse, and no single behavior defines the orientation.
The term also has an important biological meaning. Human reproduction normally involves genetic material from an egg and sperm, while asexual reproduction involves one biological source and no fertilization. This scientific distinction should not be used to make assumptions about a person’s orientation, gender, relationships, or sexual choices.