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polyploidy    
多倍性

多倍性


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  • Polyploidy - Wikipedia
    Triploid and tetraploid chromosomes are examples of polyploidy Polyploidy is a condition in which the cells of an organism have more than two paired sets of (homologous) chromosomes
  • Polyploidy | Definition, Examples, Types, Facts | Britannica
    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
  • What Is Polyploidy and Why Is It Important in Biology?
    Polyploidy is a widespread phenomenon, particularly prevalent in the plant kingdom, where it plays a significant role in evolution and diversification It is estimated that at least 35% of current flowering plant species are recent polyploids, and over 70% of all flowering plants may be polyploid
  • Polyploidy as a Fundamental Phenomenon in Evolution, Development . . .
    Polyploidy, which results from whole-genome duplication, is a fundamental complement to vertical copying Both organismal and cell polyploidy can emerge via premature cell cycle exit or via cell-cell fusion, the latter giving rise to polyploid hybrid organisms and epigenetic hybrids of somatic cells
  • 7. 4: Polyploidy - Biology LibreTexts
    This page discusses polyploidy, the condition of having more than two sets of chromosomes, mainly observed in plants like wheat and sugar cane It can occur naturally through errors in gamete …
  • Ploidy - Wikipedia
    Polyploidy occurs commonly in plants, but rarely in animals Even in diploid organisms, many somatic cells are polyploid due to a process called endoreduplication, where duplication of the genome occurs without mitosis (cell division)
  • Polyploidy | Learn Science at Scitable - Nature
    Polyploidy is the heritable condition of possessing more than two complete sets of chromosomes Polyploids are common among plants, as well as among certain groups of fish and amphibians
  • Polyploidy - Biology Online Tutorial
    Polyploidy is defined as the state of being polyploid, which means having more than two sets of chromosomes in a nucleus It is one of the different types of ploidy, which refers to the number of sets of homologous chromosomes in the genome of a cell or an organism
  • The evolutionary significance of polyploidy - Nature
    Polyploidy, or the duplication of entire genomes, has been observed in prokaryotic and eukaryotic organisms, and in somatic and germ cells
  • The expanding implications of polyploidy - PMC
    Polyploid cells, which contain more than two genome copies, occur throughout nature Beyond well-established roles in increasing cell size metabolic output, polyploidy can also promote nonuniform genome, transcriptome, and metabolome alterations





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