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2022

Home2022Page 56
(a)  Operculum                        (b)  Annulus (c)   Stomium                            (d)  Ostiole Ans. c (11)
(a)  Biconvex                            (b)  Circular (c)   Biconcave                          (d)  Plano-convex Ans. a (11)
(a)  Spherical                            (b)  Coiled (c)   Multiflagellate                   (d)  All of the above Ans. c (6)
(a)  Heart-shaped                    (b)  Dorsiventral (c)   Green                                 (d)  All of the above Ans. d (10)
(a)  Margin of leaf                    (b)  Abaxial side of leaf (c)   Adaxial side of leaf           (d)  Only on the tip of...
(a)  Sporangiophore                (b)  Annulus (c)   Stomium                            (d)  Indusium Ans. b (9)
(a)  Hadrocentric                     (b)  Leptocentric (c)   Radial                                 (d)  Conjoint collateral Ans. a (11)
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy...
(a)  Haploid                              (b)  Diploid (c)   Polyploid                           (d)  Triploid Ans. a (13)
(a)  Sporangium                      (b)  Oogonium (c)   Archegonium                  (d)     Stomium Ans. a (25)
(a)  Sporophyll                         (b)  Sorus (c)   Cone                                   (d)  Ramenta Ans. b (16)
(a)  Parallel                              (b)  Reticulate (c)   Dichotomous                     (d)  Open furcate Ans. d (18)
The magnitudes of the gravitational force at distances  r1 and r2 from the centre of a uniform sphere of radius R...
(a)  Apospory                           (b)  Parthenogenesis (c)   Parthenocarpy                  (d)  Apogamy Ans. d (7)
(a)  Cycas stem                         (b)  Pinus needle (c)   Fern leaf                            (d)  Fern rhizome Ans. d (22)
(a)  Possess a single layer of wall cells (b)  Produce very few spores (c)   Originate from a group of initial...
Imagine a light planet revolving around a very massive star in a circular orbit of radius R with a period...
(a)  Sporophytic stage (b)  Gametophytic stage (c)   Sporophytic and gametophytic stage (d)  Apomictic stage Ans. b (20)
(a)  Dictyostele                         (b)  Siphonostele (c)   Protostele                          (d)  None of these Ans. a (6)
(a)  Pollen tube                        (b)  Water (c)   Archegonia                        (d)  Flagellated sperms Ans. a (13)
(a)  Rhizome                             (b)  Indusium (c)   Sori                                     (d)  Ramenta Ans. d (9)
(a) 1/x                                     ...
(a)  Ramentum                        (b)  Sorus (c)   Indusium                           (d)  Sporophyll/Frond Ans. d (14)
A rubber cord catapult has cross-sectional area 25mm2 and  initial length of rubber cord is It is stretched to  and...
(a)  Homothallic                       (b)  Heterothallic (c)   Heterotrophic                   (d)  Heteromorphic Ans. a (12)
(a)  Brown algae                      (b)  Sphagnum (c)   Ferns                                  (d)  Cycads Ans. c (13)
Two wires A and B are of same materials. Their lengths are in the ratio 1 : 2 and diameters...
a. Ionic solids b. Molecular solids c. Amorphous solids d. Liquids Ans. a Explanation : Point defect arises because of...
a. AgBr b. AgCl c. KBr d. ZnS Ans. c Explanation : KBr exhibits Schottky defect and not Frenkl defect....
a. Metal excess defect b. Metal deficiency defect c. Displacement defect d. Impurity  defect Ans. b Explanation : Metal deficiency...
a. Disloction defect b. Schottky defect c. Frenkel defect d. Electronic defect Ans. d Explanation : When  electron rich or...
a. p-type semiconductor b. n-type semiconductor c. Intrinsic semiconductor d. Insulator Ans. b     (25)
a. Metallic conductor b. Insulator c. n- type semiconductor d. p-type semiconductor Ans. c Explanation : Excess of one valence...
a. Frenkel defect b. Schottky defect c. Non-stoichiometric defect d. Simple intertitial defect Ans. a Explanation : Frankel defect is...
(a)  Presence of vascular system (b)  Absence of flowers (c)   Absence of fruits (d)  All the above Ans. d (13)
(a)  (2Gm/r)1/2≤c               (b) (2Gm/r)1/2=c (c) (2Gm/r)1/2≥c                 (d) (gm/r)1/2≥c Answer: c (7)
(a)  Multiplies very fast to produce massive biomass (b)  Has association of nitrogen-fixing Rhizobium (c)   Has association of nitrogenfixing cyanobacteria...
(a)  Bacteria                             (b)  Gymnosperm (c)   Pteridophytes                   (d)  Archaebacteria Ans. c (7)
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