May 2022
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May 26, 2022
(a) Anatropous with four integuments (b) Anatropous with one integument (c) Amphitropous with three integuments (d) Orthotropous with two integuments...
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May 26, 2022
(a) Haploid (b) Diploid (c) Triploid (d) Tetraploid Ans. b (8)
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May 26, 2022
(a) Furniture (b) Building purposes (c) Match boxes (d) All the above Ans. d (12)
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May 26, 2022
(a) Before pollination (b) After pollination (c) After fertilization (d) None of the above Ans. a (50)
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May 26, 2022
(a) Mesophytic (b) Xerophytic (c) Hydrophytic (d) Sporophytic Ans. b (9)
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May 26, 2022
Which one of the following graphs represents correctly the variation of the gravitational field (F) with the distance (r) from...
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May 26, 2022
(a) Branches of unlimited growth (b) Branches of limited growth (c) Branches of limited and unlimited growth (d) Female cones...
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May 26, 2022
(a) Both bract and ovuliferous scales (b) Only bract scales (c) Only ovuliferous scales (d) None of the above Ans....
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May 26, 2022
Suppose, the acceleration due to gravity at the earth’s surface is 10 m/s2 and at the surface of Mars it...
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May 26, 2022
(a) 10 celled (b) 6 celled (c) 4 celled (d) 2 celled Ans. c (6)
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May 26, 2022
(a) Epispore (b) Endosperm (c) Perisperm (d) Pericarp Ans. b (17)
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May 26, 2022
(a) Embryo sac (b) Bract scale (c) Ovule (d) Apophysis Ans. d (14)
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May 26, 2022
(a) Moist soil (b) Moist tissue of sporophyte in the cone (c) Bogs and marshes (d) The rainy season only...
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May 26, 2022
(a) Above suspensor cells (b) Between suspensor and embryonal cells (c) Between primary and secondary suspensor cells (d) Between embryonal...
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May 26, 2022
(a) Apical portion (b) Intercalary portion (c) Basal portion (d) Lateral portion Ans. c (6)
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May 26, 2022
(a) Pinus plant (b) Zygote (c) Micro and megaspores (d) Male and female cones Ans. c (13)
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May 26, 2022
(a) Presence of resin cells (b) Presence of resin ducts (c) Absence of resin ducts (d) Presence of vessels Ans....
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May 26, 2022
(a) One needle (b) Two needles (c) Three needles (d) All correct Ans. d (9)
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May 26, 2022
(a) No seeds (b) Flowers (c) No vascular tissues (d) Naked seeds in cones Ans. d (11)
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May 26, 2022
(a) It is of much economic value (b) It is cosmopolitan in distribution (c) If grows in deserts and exhibits...
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May 26, 2022
(a) Haploid endosperm (b) Bicilliated sperms (c) Double fertilization (d) Presence of antheridia Ans. a (12)
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May 26, 2022
A sphere of mass M and radius R2 has a concentric cavity of radius R1 as shown in figure. The...
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May 26, 2022
(a) Leaves of Selaginella (b) Scaly leaves of Pinus (c) Needles of Pinus (d) Foliar leaves of Pinus...
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May 26, 2022
(a) Bract and ovuliferous scales (b) Embryo with two cotyledons (c) Resin canals in needles (d) Tracheids with bordered pits...
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May 26, 2022
(a) Competition among adjoining trees for sunlight (b) The effect of auxins on growth of stem tips (c) Adaptation for...
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May 26, 2022
(a) Cycas (b) Pinus (c) Abies (d) Cedrus Ans. b (7)
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May 26, 2022
(a) Above suspensor cells (b) Between suspensor and embryonal cells (c) Between primary and secondary suspensor cells (d) Between embryonal...
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May 26, 2022
(a) Roots (b) Endosperm (c) Dwarf shoot (d) Long shoot Ans. b (9)
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May 26, 2022
(a) 1 prothallial cell (b) 2 prothallial cells (c) 4 prothallial cells (d) A mass of cells Ans. b (7)
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May 26, 2022
(a) Two cotyledons (b) One cotyledon (c) Fleshy cotyledons (d) Many cotyledons Ans. d (8)
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May 26, 2022
A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then, the time period of...
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May 26, 2022
(a) Cycas (b) Pinus (c) Papaver species (d) None of the above Ans. b (7)
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May 26, 2022
(a) Tracheids (b) Vessels (c) Equal number of tracheids and vessels (d) More vessels and less tracheids Ans. a (8)
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May 26, 2022
(a) Megaspore, integument, root (b) Endosperm, megaspore, pollen grain (c) Pollen grain, leaf, root (d) Megaspore, endosperm, embryo Ans. b...
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May 26, 2022
(a) 64.5 (b) 129...
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May 26, 2022
(a) Long shoot (b) Needle leaves (c) Dwarf shoot (d) None of the above Ans.c (13)