(a) Psilotum (b) Rhynia (c) Leycopodium (d) Selaginella Ans. b (8)
(a) Equisetum (b) Lycopodium (c) Marsilea (d) Selaginella Ans. a (7)
(a) True roots (b) Antheridia (c) Archegonia (d) Both (b) and (c) Ans. d (6)
(a) 4n chromosomes (b) 3n chromosomes (c) 2n chromosomes (d) n chromosomes Ans. d (8)
(a) Coiling of young leaves (b) Arrangement of leaves on stem (c) Attachment of sori on leaves (d) Heterophilly Ans. a (16)
(a) Male sex organs (b) Female sex organs (c) Bisexual (d) None of these Ans. c (15)
(a) Require presence of water for fertilization (b) Do not need sunlight for photosynthesis (c) Depend for their nutrition on micro-organisms which cane survive only at low temperature (d) Can not compete with sun-loving plants Ans. a (5)
(a) 2 cells (b) 3 cells (c) 4 cells (d) 5 cells Ans. b (7)
(a) Vascularisation (b) Terrestrial habit (c) Water for fertilization (d) Independent sporophyte Ans. c (14)
(a) 16 (b) 32 (c) 64 (d) 128 Ans. c (10)
(a) Haploid gametophyte (b) Diploid gametophyte (c) Diploid sporophyte (d) Haploid sporophyte Ans. c (9)
(a) Biciliate and coiled (b) Multiciliate and sickle-shaped (c) Multiciliate and coiled (d) Biciliate and sickle-shaped Ans. b (10)
(a) Elaters (b) Spore mother cells (c) Spore (d) Zygote Ans. c (5)
(a) Sporophyll (b) Frond (c) Leaf petiole (d) Leaf node Ans. b (6)
(a) Operculum (b) Annulus (c) Stomium (d) Ostiole Ans. c (9)
(a) Biconvex (b) Circular (c) Biconcave (d) Plano-convex Ans. a (6)
(a) Spherical (b) Coiled (c) Multiflagellate (d) All of the above Ans. c (4)
(a) Heart-shaped (b) Dorsiventral (c) Green (d) All of the above Ans. d (9)
(a) Margin of leaf (b) Abaxial side of leaf (c) Adaxial side of leaf (d) Only on the tip of leaf Ans. a (7)
(a) Sporangiophore (b) Annulus (c) Stomium (d) Indusium Ans. b (8)
(a) Hadrocentric (b) Leptocentric (c) Radial (d) Conjoint collateral Ans. a (10)
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(a) Sporangium (b) Oogonium (c) Archegonium (d) Stomium Ans. a (24)
(a) Sporophyll (b) Sorus (c) Cone (d) Ramenta Ans. b (14)
(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 and mass M are F1 and F2 respectively. Then Answer: A (12)
(a) Apospory (b) Parthenogenesis (c) Parthenocarpy (d) Apogamy Ans. d (5)
(a) Cycas stem (b) Pinus needle (c) Fern leaf (d) Fern rhizome Ans. d (15)
(a) Possess a single layer of wall cells (b) Produce very few spores (c) Originate from a group of initial cells (d) Dehiscence at the region of a well defined stomium Ans. c (11)
Imagine a light planet revolving around a very massive star in a circular orbit of radius R with a period of revolution T. If the gravitational force of attraction between planet and star is proportional R-(5/2)to , then T2 is proportional …
(a) Sporophytic stage (b) Gametophytic stage (c) Sporophytic and gametophytic stage (d) Apomictic stage Ans. b (18)
(a) Dictyostele (b) Siphonostele (c) Protostele (d) None of these Ans. a (5)
(a) Pollen tube (b) Water (c) Archegonia (d) Flagellated sperms Ans. a (11)
(a) Rhizome (b) Indusium (c) Sori (d) Ramenta Ans. d (9)
(a) 1/x (b) 1/x2 (c) x (d) x2 Answer-c (7)
(a) Ramentum (b) Sorus (c) Indusium (d) Sporophyll/Frond Ans. d (12)
A rubber cord catapult has cross-sectional area 25mm2 and initial length of rubber cord is It is stretched to and then released to project a missile of mass (Taking YRUBBER=5×108N/m2) velocity of projected missile is (a) 20 m/s …