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- evolution - Why is polyploidy lethal for some organisms while for . . .
Polyploidy is the multiplication of number of chromosomal sets from 2n to 3n (triploidy), 4n (tetraploidy) and so on It is quite common in plants, for example many crops like wheat or Brassica for
- Why is polyploidy much more common in plants than in animals?
Polyploidy is common in plants than in animals because in animals sex determination mechanism involves number and type sex chromosomes Polyploidy will interfere with this mechanism and hence it is seen rarely in animals
- Speciation by polyploidy - Biology Stack Exchange
Speciation can occur by polyploidy My understanding of the process is as follows: 'polyploidy is when the number of chromosomes in an organism's cell doubles This means that the organism has more
- How do we know for sure that Morus nigra (black mulberry) is . . .
Wikipedia's Polyploidy and Morus nigra; Description both point out that Morus nigra or black mulberry is tetratetracontaploidic and cite two sources that both point to a third source in Plos One; Zheng et al (2015) Definition of Eight Mulberry Species in the Genus Morus by Internal Transcribed Spacer-Based Phylogeny
- How does allele dominance work in polyploid organisms?
Dominance works in the same way However, polyploids have complex inheritance patterns! 1 Punnett square for polyploid inheritance One might assume that you would need a four-dimensional table for tetraploids, a six-dimensional table for hexaploids, and an eight-dimensional table for octoploids The table you mentioned in this case should be the Punnett square And its two dimensions
- Why does polyploidy give an evolutionary advantage?
Another example of benefits from polyploidy, this time not in an evolutionary, but in a more individual context, is the fenomenon called hybrid vigor or heterosis Heterosis is a phenomenon in which a polyploid offspring of two diploid parents is more healthy and vigorous than its progenitors
- Polyploidy, or why plants of different species can produce fertile . . .
Outcomes of the successful hybridization of different species of plants (i e yelding fertile offspring) can be easily observed in agriculture - for instance, Triticum aestivum is 6n, while Triticum durum is 4n The latter comes from the hybridization of two plants from different genera (!) So it seems to me that not only can plants hybridize more easily, but also that the evolutionary
- Newest polyploidy Questions - Biology Stack Exchange
Why is polyploidy much more common in plants than in animals? [duplicate] There are very few animals with polyploidy like salamanders Why is it that polyploidy is so uncommon in animals? On the other hand there are numerous examples of polyploid plants If ut something to
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