Life Cycles in Plants

IMPORTANT

Life Cycles in Plants: Overview

This topic covers concepts, such as, Haplontic Life Cycle, Diplontic Life Cycle & Haplo-diplontic Life Cycle etc.

Important Questions on Life Cycles in Plants

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The most distinct alternation of generation is found in:-

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Which one of the following has haplontic life cycle?

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Comparable to angiosperms, which of the following algae exhibits diplontic life cycle?

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

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How many of the given statements (I-IV) about different plant groups are not correct?
I- Majority of pteridophytes are heterosporous.
II - Pollination in gymnosperms is direct and anemophilous.
III - The first stage of moss gametophyte is leafy stage, which develops directly from spore.
IV - In flowering plants, endosperm is triploid and is pre-fertilisation structure.

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Choose the odd one w.r.t. life cycle pattern.

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Haplodiplontic life cycle is found in:

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Consider the following statements about the sporophytic generation:

A. Generation that produces the spores

B. The generation that possesses vascular tissue

C. The diploid generation

Correct statements are

**Formatting of the question and option was changed.**

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Zygote behaves as meiocyte in

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The most common type of life cycle in algae is

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Which pattern of life cycle is exhibited in bryophyte and pteridophyte?

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The life cycle pattern of spermatophytes is:

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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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Distinct alternation of generation is found in

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Spirogyra has a

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Which of these have diplontic life cycle?