Plant evolution
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Plant evolution is the subset of evolutionary phenomena that concern plants. Evolutionary phenomena are characteristics of populations that are described by averages, medians, distributions, and other
Plant cells with visible chloroplasts (from a moss, Plagiomnium affine)
Zygote
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A zygote is a eukaryotic cell formed by a fertilization event between two gametes.
Plant evolution
…Polyploidy Speciation via polyploidy: A diploid cell undergoes failed meiosis, producing diploid gametes, which self-fertilize to produce a tetraploid zygote. Polyploidy is pervasive in plants and some estimates suggest that 30–80% of living plant species are polyploid, and many lineages show evidence of…
Zygote formation: egg cell after fertilization with a sperm. The male and female pronuclei are converging, but the genetic material is not yet united.
Views of a Foetus in the Womb detail