What change occured during evolution of sporophytes in plant kingdom?

Gradual sterilization of gametophytic tissues

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Gradual sterilization of sporophytic tissues

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Gradual reduction of sporophyte

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Gradual increase of fertile part of sporophytic tissue

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Solution

The correct option is B Gradual sterilization of sporophytic tissues
Gradual sterilization of sporophytic tissues has occurred during evolution of sporophyte in plant kingdom. The process of the sterilization of sporogenous tissue is very conspicuous in bryophytes. According to Bower the more complex sporophytes have evolved from the simpler ones by the progressive sterilization of potential sporogenous tissue. The simplest type of sporophyte is found in Riccia.

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