All important terms at a glance

  • Gametophyte

    plants have alternating generations of their habit: there is a generative and a vegetative generation. Usually you are acquainted to handle the vegetative generation, which has two or multiple sets of chromosomes. The sexual phase is represented by the male and female gametophytes (pollen and egg cells) which contain only a single set of chromosomes. A pollen grain is strictly seen a different generation and a different appearance and stage of development of the same plant.

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