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Что (кто) такое asexual reproduction - определение
Asexual reproduction
![[[Aphid]] giving birth to live young from an unfertilized egg](https://commons.wikimedia.org/wiki/Special:FilePath/Aphid-giving-birth.jpg?width=200 "[[Aphid]] giving birth to live young from an unfertilized egg")
![Bryophyllum daigremontianum (Kalanchoe daigremontiana)]]''](https://commons.wikimedia.org/wiki/Special:FilePath/Bryophyllum daigremontianum nahaufnahme1.jpg?width=200 "Bryophyllum daigremontianum (Kalanchoe daigremontiana)]]''")
![The yeast ''[[Saccharomyces cerevisiae]]'' reproducing by [[budding]]](https://commons.wikimedia.org/wiki/Special:FilePath/S cerevisiae under DIC microscopy.jpg?width=200 "The yeast ''[[Saccharomyces cerevisiae]]'' reproducing by [[budding]]")
![[[Aphid]] populations are often entirely female during the summer, with sexual reproduction only to produce eggs for overwintering.](https://commons.wikimedia.org/wiki/Special:FilePath/Soybeanaphidlifecycle.gif?width=200 "[[Aphid]] populations are often entirely female during the summer, with sexual reproduction only to produce eggs for overwintering.")
![''[[Linckia guildingi]]'' "comet", a [[starfish]] regrowing from a single arm](https://commons.wikimedia.org/wiki/Special:FilePath/Tu - Linckia guildingi cropped.jpg?width=200 "''[[Linckia guildingi]]'' \"comet\", a [[starfish]] regrowing from a single arm")
BIOLOGICAL PROCESS IN WHICH NEW INDIVIDUALS ARE PRODUCED BY EITHER A SINGLE CELL OR A GROUP OF CELLS, IN THE ABSENCE OF ANY SEXUAL PROCESS
Agamogenesis; Bopapapob; Asexual Reproduction; Asexual form; Agamogenetically; Agamogony; Monogony; Reproduce asexually; Asexual organism; Asexual organisms; Asexually reproducing; Reproduces asexually
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent.
Agamogenesis
BIOLOGICAL PROCESS IN WHICH NEW INDIVIDUALS ARE PRODUCED BY EITHER A SINGLE CELL OR A GROUP OF CELLS, IN THE ABSENCE OF ANY SEXUAL PROCESS
Agamogenesis; Bopapapob; Asexual Reproduction; Asexual form; Agamogenetically; Agamogony; Monogony; Reproduce asexually; Asexual organism; Asexual organisms; Asexually reproducing; Reproduces asexually
·noun Reproduction without the union of parents of distinct sexes: asexual reproduction.
Asexual reproduction in starfish
![''[[Coscinasterias tenuispina]]''](https://commons.wikimedia.org/wiki/Special:FilePath/Coscinasterias tenuispina Linosa 209.jpg?width=200 "''[[Coscinasterias tenuispina]]''")
MODE OF REPRODUCTION OF STARFISH
Asexual reproduction in starfish takes place by fission or through autotomy of arms. In fission, the central disc breaks into two pieces and each portion then regenerates the missing parts.
Примеры употребления для asexual reproduction
1. Asexual reproduction is common in some insect species, rarer in reptiles and fish, and has never been documented in mammals.
2. In asexual reproduction, an egg splits in two and DNA contributed from the mother doubles, so each resulting egg has a full complement of chromosomes from the female.
3. Asexual reproduction among sharks is more likely to happen in captivity, when there is no other option for reproduction, than in the wild, Hueter said.
4. A recent study had documented the first confirmed case of asexual reproduction, or parthenogenesis, among sharks: a pup born at a Nebraska zoo came from an egg that developed in a female shark without sperm from a male.
5. The paper‘s lead author, Demian Chapman, who did the genetic analysis while pursuing his doctorate at Nova Southeastern and now directs the shark program at the Pew Institute for Ocean Science, said the reduced genetic variability might pose a problem over time if males become scarce under intense fishing pressure and females resort to asexual reproduction.