parthenogenetic
/'pa:θinoudʤi'netik/
Học thuậtThân thiện
A female aphid gives birth to live young through parthenogenetic reproduction.
Definition
- Adjective:
- (Biology) Relating to or characterized by parthenogenesis: Describing reproduction that occurs without fertilization by a male gamete, where an unfertilized egg develops into a new individual.
Usage
- The term "parthenogenetic" is used primarily in biological and zoological contexts to describe organisms, populations, or modes of reproduction.
- It functions as an attributive adjective, typically placed before a noun (e.g., parthenogenetic species, parthenogenetic offspring).
Examples
- Adjective:
- Some species of lizards are entirely parthenogenetic, consisting only of females.
- The parthenogenetic development of the egg was observed under the microscope.
- Researchers studied the parthenogenetic strain of the aphid population.
Advanced Usage
- "Obligately parthenogenetic": Describes a species or lineage that reproduces exclusively by parthenogenesis, with no sexual phase.
- The bdelloid rotifers are an obligately parthenogenetic group.
- "Facultatively parthenogenetic": Describes organisms capable of reproducing either parthenogenetically or sexually, often depending on environmental conditions.
- Some honeybee eggs can undergo facultatively parthenogenetic development to produce drones.
Variants and Related Words
- Parthenogenesis (n): The biological process itself; reproduction from an ovum without fertilization.
- Parthenogenesis is common in many plants and invertebrates.
- Parthenogenetically (adv): In a parthenogenetic manner.
- The eggs developed parthenogenetically.
Synonyms
- Agamic (adj): Relating to reproduction without fertilization; asexual.
- Asexual (adj): Not involving the fusion of gametes; includes various forms like budding and fission, with parthenogenesis being a specific type.
Related Terms and Concepts
- Automixis: A type of parthenogenesis where the egg undergoes meiosis and the resulting haploid cells fuse to restore diploidy.
- Thelytoky: A form of parthenogenesis that produces only female offspring.
- Arrhenotoky: A form of parthenogenesis where unfertilized eggs develop into males (common in hymenopterans like bees).
A female aphid gives birth to live young through parthenogenetic reproduction.
Adjective
- (of reproduction) not involving the fusion of male and female gametes in reproduction