parthenogenesis definition

  • noun:
    • a type of reproduction in which an unfertilized egg develops into a new person, occurring generally among bugs and specific various other arthropods.
    • discussing numerous areas of asexual reproduction:
    • figurative utilizes of biologic sensory faculties
    • Virgin delivery, in reference to the Virgin Mary and Jesus Christ.
    • The production of brand new folks from virgin females through ova which may have the power of building without having the input of the male factor; manufacturing, without fertilization, of cells effective at germination. It is one of many phenomena of alternate generation. Cf. heterogamy, and metagenesis.
    • producing seed without fertilization, thought to happen through the nonsexual formation of an embryo extraneous on embryonic vesicle.
    • Reproduction by a virgin; in zoology, one of many phenomena going to alternate generation among animals which may have sex, a type of agamogenesis where an imperfect female person, hatched from an egg set by an ideal feminine after ordinary intercourse, will continue to reproduce its type for example or maybe more generations without renewed impregnation. Parthenogenesis characterizes the reproduction of numerous bugs, as aphids or plant-lice.
    • In botany: producing an ideal embryo without the input of pollen.
    • Alternation of years; metagenesis.
    • the sort of parthenogenesis when the fertilized eggs produce just one sex.
    • the standard improvement a few of the eggs set by a lady animal without fertilization, such as the honey-bee. Following the nuptial trip the queen bee comes back on hive aided by the spermatic receptacle full of spermatozoa, which retain their particular vitality for the rest of the woman life, and fertilize a few of the eggs, not all, while they go through the oviduct past the duct of spermatic receptacle. The eggs that are not fertilized grow into male bees or drones, whilst fertilized eggs produce females, which could be queens or perfect females, or workers or arrested females, based on the treatment which they get from workers when they have already been laid. The workers, which can make no nuptial trip and they are not capable of sexual union, often set eggs which bring about guys.
    • procedure by which an unfertilized egg develops into a person; common amongst pests plus some various other arthropods
    • personal conception without fertilization by a guy

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  • Agriculture Dictionary for "parthenogenesis"
    • reproduction in which young are manufactured…
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  • Apiculture Dictionary for "parthenogenesis"
    • The development of young from unfertilized…
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  • Urban Dictionary for "parthenogenesis"
    • unfertilized eggs become brand-new organisms without…
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  • Medical Dictionary for "parthenogenesis"
    • Development of a germ cell without…
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