(a) One generation (b) Two generations (c) Three generations (d) Four generations Ans. c (6)
The correct graph representing the variation of total energy (Et )kinetic energy (Ek )and potential energy (U) of a satellite with its distance from the centre of earth is Answer: c (14)
(a) One microsporangium on the adaxial side (b) One microsporangium on the abaxial side (c) Two microsporangia on the abaxial side (d) Two microsporangia on the adaxial side (e) Four microsporangia on the lower side Ans. c (9)
(a) Cycas (b) Ephedra (c) Gnetum (d) Pinus Ans. d (8)
(a) Pycnoxylic and monoxylic (b) Pycnoxylic and heteroxylous (c) Manoxylic and homoxylous (d) Manoxylic and heteroxylous Ans. a (13)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) 6 years (b) 2 years (c) 1 ½ years (d) 1 year Ans. d (11)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) Many microsporangia (b) No microsporangia (c) 2 microsporangia (d) Only one microsporangium Ans. c (11)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) Selaginella stem (b) Cycas wood (c) Pinus wood (d) All the above Ans. c (9)
(a) Xylem (b) Phloem (c) Transfusion tissue (d) Conducting tissue Ans. c (12)
(a) Pollen chamber (b) Anther (c) Tapetum (d) Microsporangium Ans. d (10)
(a) Nucellus (b) Embryo (c) Gametangia (d) Gametophore Ans. a (8)
(a) Heterospory (b) Polyembryony (c) Homospory (d) One type of branching Ans. b (5)
(a) Pollen grain of angiosperms (b) Stamen (c) Male gametophyte (d) Inflorescence Ans. d (18)
(a) Flower (b) Megasporophyll (c) Inflorescence (d) Microsporophyll Ans. c (5)
The curves for potential energy (U) and kinetic energy (Ek) of a two particle system are shown in figure. At what points the system will be bound? Answer: d (11)
(a) Hypogeal germination (b) Epigeal germination (c) Dormancy (d) None of the above Ans. b (5)
(a) Simple polyembryony (b) Cleavage polyembryony (c) Both simple and cleavage polyembryony (d) None of the above Ans. c (13)
(a) Male gametophyte (b) Female gametophyte (c) Sporophyte (d) None of the above Ans. b (5)
(a) Pollen tube with two motile sperms (b) Endosperm with archegonia (c) Endosperm with sperms (d) Endosperm with embryo sac Ans. b (50)
(a) Anatropous with four integuments (b) Anatropous with one integument (c) Amphitropous with three integuments (d) Orthotropous with two integuments Ans. b (9)
(a) Haploid (b) Diploid (c) Triploid (d) Tetraploid Ans. b (7)
(a) Furniture (b) Building purposes (c) Match boxes (d) All the above Ans. d (9)
(a) Before pollination (b) After pollination (c) After fertilization (d) None of the above Ans. a (44)
(a) Mesophytic (b) Xerophytic (c) Hydrophytic (d) Sporophytic Ans. b (8)
Which one of the following graphs represents correctly the variation of the gravitational field (F) with the distance (r) from the centre of a spherical shell of mass M and radius a Answer: d (22)
(a) Branches of unlimited growth (b) Branches of limited growth (c) Branches of limited and unlimited growth (d) Female cones Ans. b (8)
(a) Both bract and ovuliferous scales (b) Only bract scales (c) Only ovuliferous scales (d) None of the above Ans. a (10)
Suppose, the acceleration due to gravity at the earth’s surface is 10 m/s2 and at the surface of Mars it is 4.0 m/s2. A 60 kg passenger goes from the earth to the Mars in a spaceship moving with a …
(a) 10 celled (b) 6 celled (c) 4 celled (d) 2 celled Ans. c (4)
(a) Epispore (b) Endosperm (c) Perisperm (d) Pericarp Ans. b (14)
(a) Embryo sac (b) Bract scale (c) Ovule (d) Apophysis Ans. d (12)
(a) Moist soil (b) Moist tissue of sporophyte in the cone (c) Bogs and marshes (d) The rainy season only Ans. b (11)
(a) Above suspensor cells (b) Between suspensor and embryonal cells (c) Between primary and secondary suspensor cells (d) Between embryonal cells and apical cells Ans. a (3)
(a) Apical portion (b) Intercalary portion (c) Basal portion (d) Lateral portion Ans. c (5)