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Showing posts with the label MCQ

Reproductive Structures of Pteridophyte

  Reproductive Structures of Pteridophyte The Pteridophyte sporophyte, besides being a prominent component of soil and vegetation, is an important ornamental plant in gardens and lawns. Indoors, its gracefulness and shape fit it ideally as a plant for pot culture in hallways and living rooms, especially during the months of November to March. Transportation of whole plants from one place to another without damage is attempted by packing them in sand, decomposed silt, ashes, or sawdust. Despite their rich horticultural value, many Pteridophytes are vanishing from nature due to indiscriminate destruction of their natural habitats and capturing of species for ornamental purposes. The best means of conservation is an adequate botanical knowledge of these plants, together with their habitats. The approaches of the non-destructive collection of herbarium specimens are now being stressed. The collection is also supplemented with data regarding the locality and habitat, so as to make it de...

PHOTOSYNTHESIS OF HIGHER PLANT MCQ

  1. The components of PS-I are located on the a) stroma                     b) stroma thylakoid c) granum thylakoid d) outer surface   of stromal and granal thylakoid   2. Photolysis of water during photosynthesis occurs with the help of a) PS-II                        b) PS-I c) ferredoxin                d) cytochrome   3. Of the total incident solar radiation the proportion of PAR is a) about 60%                b) less than 50% c) more than 80%         d) about 70%   3. Presence of bundle sheath is a characteristic of a) xerophytic plants   b) members of gr...

MCQ ABOUT CENTRAL DOGMA

  1. The amount of which of these is    least in a cell (a) mRNA                     (b) tRNA              (c) rRNA               (d) None of these   2.Who among the following established that RNA is the genetic material? (a) Lederberg                                          (b) Griffith             (c) Nirenberg and Holley                       (d) Frankel Conrat   3. The ratio of DNA in bacterial cell and euka...