Biology / Unit 5 Bio 0999 short lesson, about 20 seconds
The Haplontic Life Cycle
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The idea
In a haplontic life cycle, the multicellular organism is haploid throughout its life, and the only diploid cell is the zygote, which undergoes meiosis after forming.
In practice
Most fungi and some algae spend nearly their entire life cycle as haploid organisms produced by mitosis.
Where people slip
The zygote in this cycle divides by meiosis, not mitosis, so diploidy never persists past a single cell.
Your place on the trail
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Builds on
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