- polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. In other words, the polyploid cell or organism has three or more times the haploid chromosome number. Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis.www.britannica.com/science/polyploidy
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Polyploidy | Definition, Examples, Types, & Facts | Britannica
ವೆಬ್Polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis. Learn more about …
ಕೇವಲ britannica.com ಇಂದ ಫಲಿತಾಂಶಗಳನ್ನು ನೋಡಿSpeciation
Speciation, the formation of new and distinct species by splitting a single …
Allopolyploidy
Other articles where allopolyploidy is discussed: evolution: Polyploidy: …from …
Polyploidy - Wikipedia
Examples in animals are more common in non-vertebrates such as flatworms, leeches, and brine shrimp. Within vertebrates, examples of stable polyploidy include the salmonids and many cyprinids (i.e. carp). Some fish have as many as 400 chromosomes. Polyploidy also occurs commonly in amphibians; for example the biomedically important genus Xenopus contains many different sp…
Wikipedia · ಸಿಸಿ-ಬಿವೈ-ಎಸ್ಎ ಪರವಾನಗಿ ಅಡಿಯ ಪಠ್ಯ- ಅಂದಾಜು ಓದುವ ಸಮಯ: 9 ನಿಮಿಷಗಳು
7.4: Polyploidy - Biology LibreTexts
ವೆಬ್Cells (and their owners) are polyploid if they contain more than two haploid (n) sets of chromosomes; that is, their chromosome number is some multiple of n greater than …
Polyploidy | Learn Science at Scitable - Nature
ವೆಬ್Polyploids arise when a rare mitotic or meiotic catastrophe, such as nondisjunction, causes the formation of gametes that have a complete set of duplicate chromosomes. …
Polyploidy: a biological force from cells to ecosystems - PMC
ವೆಬ್Polyploidy (whole-genome duplication; WGD, see glossary ), defined as having three or more sets of chromosomes, influences organisms in all clades of eukaryotic life and all …
Polyploidy: A Biological Force From Cells to Ecosystems - Cell Press
ವೆಬ್Polyploidy, resulting from the duplication of the entire genome of an organism or cell, greatly affects genes and genomes, cells and tissues, organisms, and even entire …
Polyploidy as a Fundamental Phenomenon in Evolution, …
ವೆಬ್ಮಾರ್ಚ್ 24, 2022 · DNA replication during cell proliferation is ‘vertical’ copying, which reproduces an initial amount of genetic information. Polyploidy, which results from …
Polyploidy: Current Biology - Cell Press
ವೆಬ್ಮೇ 4, 2015 · Polyploidy is defined as an increase in genome DNA content: in this Primer, Frawley and Orr-Weaver discuss why somatic polyploidy occurs and how cells become polyploid.
The evolutionary significance of polyploidy - Nature
ವೆಬ್ಮೇ 15, 2017 · This paper shows that both natural polyploidy and artificially-induced polyploidy in A. thaliana confer increased salt tolerance by regulating leaf potassium levels.
Polyploidy: an evolutionary and ecological force in stressful times ...
ವೆಬ್ಡಿಸೆಂ 1, 2020 · Polyploidy has been hypothesized to be both an evolutionary dead-end and a source for evolutionary innovation and species diversification. Although …
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