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What kind of organisms produce triploid offspring?
Question
#69495. Asked by niale. (Aug 08 06 5:21 PM)
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kisstherainbow
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Some plants can. An abnormally large strawberry is usually a triploid.
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Brainyblonde
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Normal plants have two sets of chromosomes which divide when the cells are preparing to pass on their DNA to their offspring in their pollen (male parent plant) or ovules (female parent plant). They are diploid organisms. Sometimes, the chromosomes do not split in two, but a duplicate set of chromosomes is produced for each cell division, so that the new individual has twice the number of chromosomes it should. This is called polyploidy. If there are three times the normal number of chromosomes, a plant is triploid, four times is tetraploid.
http://theseedsite.co.uk/hybrids.html
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malarson
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Seedless hybrids are usually polyploidy. They're androgenous, which is the reason they don't produce seeds.
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niale
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What exactly is 'androgenous'? Is that a class of bryophytes or another name for bryophytes?
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Beeker75
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If you mean "androgynous"...
"Androgynous traits are those that either have no gender value, or have some aspects generally attributed to the opposite gender."
http://en.wikipedia.org/wiki/Androgyny
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