Life Cycles in Plants

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Life Cycles in Plants: Overview

This topic comprises the life cycle of plants classified into haplontic, diplontic and haplo-diplontic life cycle. It represents each life cycle which is divided into two phases saprophytic and gametophytic.

Important Questions on Life Cycles in Plants

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Which one of the following has haplontic life cycle?

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A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has

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In these figures, two life cycles are described. Mark the correct option.

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Zygote behaves as meiocyte in

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In Spirogyra, meiosis occurs during

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Zygote of an organism developed after syngamy undergoes meiosis to form haploid spores, which divide mitotically and form the gametophyte. The organism must have  ___________________________________life cycle.

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Spirogyra is a sexually reproducing alga in which vegetative thallus is haploid. In Spirogyra, meiosis:

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Zygotic meiosis is characterstic of

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Assertion: Spirogyra shows haplontic life cycle.
Reason: Zygotic meiosis occurs in Spirogyra.

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Spirogyra has a

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Which of these have diplontic life cycle?

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In the haplontic life cycle of many algae:

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Which of the following have haploid plant body in most of organisms?

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Which of the following exhibits haplodiplontic type of life cycle pattern?