Subdivision Gymnospermae

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Subdivision Gymnospermae: Overview

This topic covers concepts such as Sexual Reproduction in Gymnosperms, Pollen Grain of Gymnosperms, Cycas Gymnosperms, Habitat of Gymnosperms, Mycorrhiza, Classification of Gymnosperms, Morphology of Gymnosperms, etc.

Important Questions on Subdivision Gymnospermae

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The largest ovules, largest male and female gametes and largest plants are found among

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Largest sperms in the plant world are found in

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The ‘wing’ of Pinus seed is derived from

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Which one is the most advanced from evolutionary point of view?

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Pinus differs from mango in having

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Fern character of Cycas is

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Mycorrhiza is                                     

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Consider the following four statements. Which of the following statements are incorrect?

(A) The sporophyte in liverworts is more elaborate than in mosses.
(B) Salvinia is heterosporous.
(C) The life cycle of all seed-bearing plants are diplontic.
(D) In Pinus, male and female cones are borne on different trees.

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The gametophyte is not an independent, free living generation in –

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In which of the following organism, pigments are similar to that found in higher plants?

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In Pinus gymnosperms, the haploid structure are      

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In gymnosperms like Pinus and Cycas, the endosperm is

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Turpentine is obtained from          

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Resin and turpentine are obtained from:

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In Pinus, the pollen grain has 6 chromosomes then its endosperm will have ________ chromosomes.        

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A plant having seeds but lacking flowers and fruits belongs to

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How many embryo sacs are present in a single megasporangium?

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Identify the plants in (A-D) chronology in the figure given below:

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Select the correct statement.

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Out of the following, which one is not a characteristic of all divisions of vascular plants?