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  • Flame SCF 18 Near Chawla Lights Ph-7 Mohali 9888949978

BIOLOGY

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Assertion : In Pinus, pollination is anemophilous Reason : Pinus bear winged pollen grains.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Angiosperms are most recent plants. Reason : Angiosperms lack archegonia.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Double fertilization is unique to angiosperms. Reason : Triple fusion occurs in double fertilization.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

cAssertion : Angiosperm and Gymnosperms both are spermatophyta. Reason : Angiosperm and Gymnosperms both form triploid endosperm.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Flower is aggregation of sporophylls. Reason : Sporophylls are modified in angiosperms

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Angiosperms lack flagellate male gametes. Reason : Sperms are not dependent on water for fertilization.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Adiantum caudatom is called walking fern. Reason : It can reproduce by its leaf tips.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Stamens are comparable to microsporophylls. Reason : Ovules are comparable to megasporophylls.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : More dicot species are known than that of monocot species. Reason : Two cotyledons are present in the dicot plants.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Biennial plants flower in two year. Reason : The biennial plants live for two years.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Angiosperms contain microsporophyll and megasporophyll. Reason : Microsporophyll and megasporophyll forms microspore and megaspore respectively.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Pinus is heterosporous. Reason : Microspore and megaspore are present in them.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : “Upper Carboniferous” period is also called “Age of Ferns”. Reason : Ferns dominated during the period.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Cycas embryo has many cotyledons. Reason : Compound suspensor is formed due to fusion of suspensors of proembryos.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The interval between pollination and fertilization is about 4 months in Cycas. Reason : Cycas show retention of swimming sperm.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The male of Cycas change in size when the microspores became mature. Reason : The microspores are dispersed by wind.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Xylem of gymnosperms consists of tracheids and no vessels. Reason : Phloem of gymnosperms consists of phloem parenchyma, companion cells and sieve tubes.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Cycas has two types of root-tap root system and coralloid roots. Reason : Coralloid root contains Anabaena.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : In leptosporangiate development, sporangia are formed from a group of initials. Reason : Eusporangiate development of sporangia starts from single initial.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Coenosorus lacks true indusium. Reason : Indusium covers sori.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The peristome is a fringe of teeth-like projections found at the mouth of the capsule. Reason : It may be of two types nematodontous and orthodontus.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Funaria is monoecious. Reason : Cross fertilization occurs in Funaria.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Gemmae formation in Funaria occurs in favourable condition. Reason : The gemmae form on the stem and leaves.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Funaria multiplied vegetatively by means of bulbils. Reason : Bulbils and tubers are two different structures.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Sporophytes of pteridophyta are dominant individual. Reason : They do not show the formation of true root.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Water is not required for fertilization process in ferns. Reason : Malic acid of archegonial neck attracts antherozoids.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Both bryophytes and pteridophytes contain well-developed antheridia. Reason : Biflagellate sperms are formed by their antheridia.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Indusium dries in mature sours and releases sporangia. Reason : Mature sporangium releases spores by the structures-annulus and stomium.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Ramenta are scales which cover young rhizome and leaves of Dryopteris. Reason : Pteridium lacks rementa.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The sorus of pteridium is of coenosorus type. Reason : Pteridium lacks sori.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Mosses are used as pollution indicators. Reason : They absorb metals.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The archegonia of Funaria are arranged into a terminal cluster. Reason : The archegonial cluster is surrounded by perigonial leaves

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Paraphyses are also called perigonial leaves. Reason : They are associated with the antheridia.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Antheridia of Funaria are sunk in pit. Reason : Its antheridial cluster is surrounded by perigonial leaves.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Homosporous pteridophytes are exosporic. Reason : Heterosporous pteridophytes are endosporic.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The growth of Funaria stem occurs by a single cell. Reason : It’s position is apical.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : Paroicous mosses have both sex organs intermingled together. Reason : Autoicous mosses bear sex organs on different branches.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

22. Assertion : Unlike thallophytes, bryophytes show formation of embryo. Reason : The embryo gives rise to gametophyte plant of bryophytes.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

32. Assertion : The young stem of Funaria is photosynthetic. Reason : It contain hydroids.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

Assertion : The sporogonium of Riccia is the simplest among the liverworts. Reason : Sporophyte consists of capsule only

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion...

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