Explain the process of development of gametophyte in Pteris.
Pteris is a common fern belonging to the family Pteridaceae. Like all ferns, it exhibits an alternation of generations, with the sporophyte (the visible, photosynthetic plant) and the gametophyte (the microscopic, haploid phase) alternating with each other. The development of the gametophyte in Pteris involves several stages, as described below.
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Sporophyte: The sporophyte of Pteris is the familiar, leafy plant that we see in nature. ______ __________ ________ __________ ___ _____ _______ ______.
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