Description : Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct? A B C D (a) Chara Marchantia Fucus Pinus (b) Equisetum Ginkgo Selaginella Lycopodium (c) Selaginella Equisetum Salvinia Ginkgo (d) Funaria Adiantum Salvinia Riccia
Last Answer : (c) Selaginella Equisetum Salvinia Ginkgo
Description : Select the correct statement. (a) Sequoia is one of the tallest trees. (b) The leaves of gymnosperms are not well adapted to extremes of climate. (c) Gymnosperms are both homosporous and heterosporous. (d) Salvinia, Ginkgo and Pinus all are gymnosperms.
Last Answer : (a) Sequoia is one of the tallest trees.
Description : What is common in all the three, Funaria, Dryopteris and Ginkgo? (a) Presence of archegonia (b) Well developed vascular tissues (c) Independent gametophyte (d) Independent sporophyte
Last Answer : (a) Presence of archegonia
Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.
Last Answer : (b) female gametophyte lacks archegonia
Description : Which one of the following pairs is wrongly matched? (1) Trafalgar Square — London (2) Red Square — Moscow (3) TiananmenSquare — Beijing (4) Tahrir Square — Abu Dhabi
Last Answer : (4) Tahrir Square — Abu Dhabi Explanation: Tahrir Square, also known as “Martyr Square’, is a major public town square in Downtown Cairo. Tahrir Square was the focal point of the 2011 Egyptian Revolution against former president Hosni Mubarak.
Description : Which of the following pairs is wrongly matched? (1) Koyana Project - Maharashtra (2) Sharavathy Project - Karnataka (3) Balimela Project - Orissa (4) Sabarigiri Project - Gujarat
Last Answer : (4) Sabarigiri Project - Gujarat Explanation: The Sabaraigiri project is located in 48 kms from Pathanamthitta district, through tea estates and thick forest is the famous Hydro Electric Project called ... a main reservoir at place Anamudi and from through large pipes to the Muziyoor power house.
Description : Which one of the following pairs is wrongly matched? (a) Yeast - Ethanol (b) Streptomycetes - Antibiotic (c) Coliforms - Vinegar (d) Methanogens - Gobar gas
Last Answer : c) Coliforms - Vinegar
Description : Which one of the following pairs is wrongly matched? (a) Alcohol - Nitrogenase (b) Fruit juice - Pectinase (c) Textile - Amylase (d) Detergents - Lipase
Last Answer : (a) Alcohol - Nitrogenase
Description : Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it? (a) Guanine, Adenine - Purines (b) Adenine, Thymine - Purines (c) Thymine, Uracil - Pyrimidines (d) Uracil, Cytosine - Pyrimidines
Last Answer : (b) Adenine, Thymine - Purines
Description : Which of the following pairs is wrongly matched? (a) Starch synthesis in pea : Multiple alleles (b) ABO blood grouping : Co-dominance (c) XO type sex determination: Grasshopper (d) T.H. Morgan : Linkage
Last Answer : (a) Starch synthesis in pea : Multiple alleles
Description : Which one of the following pairs is wrongly matched while the remaining three are correct? (a) Penicillium – Conidia (b) Water hyacinth – Runner (c) Bryophyllum – Leaf buds (d) Agave – Bulbils
Last Answer : (b) Water hyacinth – Runner
Description : Which of the following pairs in wrongly matched ? (1) Starch synthesis in pea : Multiple alleles (2) ABO blood grouping : Co-dominance (3) XO type sex determination : Grasshopper (4) T.H. Morgan : Linkage
Last Answer : (1) Starch synthesis in pea : Multiple alleles
Description : Which one of the following pairs is wrongly matched? Place — Location (1) Trafalgar Square — London (2) Red Square — Moscow (3) Tiananmen Square — Beijing (4) Tahrir Square — Abu Dhabi
Last Answer : Tahrir Square — Abu Dhabi
Description : Which of the following pairs is wrongly matched ? (1) Koyana Project - Maharashtra (2) Sharavathy Project - Karnataka (3) Balimela Project - Orissa (4) Sabarigiri Project - Gujarat
Last Answer : Sabarigiri Project - Gujarat
Description : Which of the following statements is wrong for viroids? (a) They cause infections. (b) Their RNA is of high molecular weight. (c) They lack a protein coat. (d) They are smaller than viruses
Last Answer : (b) Their RNA is of high molecular weight.
Description : .Viroids differ from viruses in having (a) DNA molecules without protein coat (b) RNA molecules with protein coat (c) RNA molecules without protein coat (d) DNA molecules with protein coat
Last Answer : (c) RNA molecules without protein coat
Description : .Which of the following is correct about viroids? (a) They have RNA with protein coat. (b) They have free RNA without protein coat. (c) They have DNA with protein coat. (d) They have free DNA without protein coa
Last Answer : (b) They have free RNA without protein coat.
Description : _____ are infectious RNA particles a. Viroids b. Prions c. Virions d. A-C are correct
Last Answer : a. Viroids
Description : Viroids contain a. RNA and DNA. b. Only RNA. c. DNA and a capsid. d. RNA and an envelope.
Last Answer : b. Only RNA.
Description : Viroids differ from viruses in having; (1) DNA molecules without protein coat (2) RNA molecules with protein coat (3) RNA molecules without protein coat (4) DNA molecules with protein coat
Last Answer : (3) RNA molecules without protein coat
Description : Which of the following is wrongly matched ?
Last Answer : Which of the following is wrongly matched ? A. Operon - Structural genes, operator and promoter ... - Binds to operator to stop enzyme synthesis
Description : Which is wrongly matched
Last Answer : Which is wrongly matched A. Agave-bulbils B. Penicillium-conidia C. Water,Hyacinth-runner D. Bryophyllum-leaf buds.
Description : Choose the wrongly matched pair :
Last Answer : Choose the wrongly matched pair : A. Carrot grass - Lantana B. Wildlife safariarks - Ex situ ... the planet D. Khasi and jointia Hills - Meghalaya
Description : Which of the following is wrongly matched? (a) Shompens - Andaman and Nicobar (b) Minicoy - Lakshadweep (c) Khasi - Mizoram (d) Garo – Chhatisgarh
Last Answer : Ans: (d)
Description : Which of the following passes and locations is/are wrongly matched? 1. Zojila and Burzil - Jammu & Kashmir 2. Bara Lapcha La and Shipki La - Uttar Pradesh 3. Thaga La, Niti Pass and Lipu Lekh - Himachal Pradesh 4. Nathu La and Jelep La - Sikkim (a) 1 and 2 (b) 2 and 3 (c) 3 and 4 (d) 1, 2 and 3
Last Answer : Ans: (b)
Description : Which of the following is wrongly matched in the given table? Microbe Product Application (a) Streptococcus Streptokinase Removal of clot from blood vessel (b) Clostridium butylicum Lipase ... Cyclosporin A Immuno- suppressive drug (d) Monascus purpureus Statins Lowering of blood cholesterol
Last Answer : (b) Clostridium butylicum Lipase Removal of oil stains
Description : Which one of the following is wrongly matched? (a) Transcription - Writing information from DNA to tRNA. (b) Translation - Using information in mRNA to make protein. (c) Repressor protein - Binds to operator to stop enzyme synthesis. (d) Operon - Structural genes, operator and promoter.
Last Answer : (c) Repressor protein - Binds to operator to stop enzyme synthesis.
Last Answer : (d) Operon - Structural genes, operator and promoter
Description : Which of the following branches of horticulture is wrongly matched?(Agriculture MCQ) [a] Pomology - Cultivation of flower crops [b] Olericulture - Cultivation of Vegetables [c] Spices Crop - ... Medicinal and aromatic plants - Cultivation of medicinal and aromatic crops [e] None of the above
Last Answer : [e] None of the above
Description : Which one is wrongly matched? (a) Uniflagellate gametes – Polysiphonia (b) Biflagellate zoospores – Brown algae (c) Gemma cups – Marchantia (d) Unicellular organism – Chlorella
Last Answer : (a) Uniflagellate gametes – Polysiphonia
Description : Which one of the following is wrongly matched? (a) Spirogyra - Motile gametes (b) Sargassum - Chlorophyll (c) Basidiomycetes - Puffballs (d) Nostoc - Water blooms
Last Answer : (a) Spirogyra - Motile gametes
Description : Which one is wrongly matched ? (1) Uniflagellate gametes - Polysiphonia (2) Biflagellate zoospores - Brown algae (3) Gemma cups - Marchantia (4) Unicellular organism - Chlorella
Last Answer : (1) Uniflagellate gametes - Polysiphonia
Description : Which one of the following is/ are wrongly matched ? A. typhoons — China Sea B. hurricanes— India Ocean C. cyclone — West Indies D. tornadoes — Australia (1) A, B and C (2) A, B and D (3) A, C and D (4) B, C and D
Last Answer : B, C and D
Description : Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and ... of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia
Last Answer : (d) Presence of vessel elements and absence of archegonia
Description : Explain the lifecycle and nature of a fern prothallus. -Biology
Last Answer : answer:
Description : What are the functions of the synergids? -Biology
Description : Difference between protonema and prothallus? -Biology
Description : $ A simple but dominant gametophyte is called Prothallus. ! Prothallus is found in Bryophytes.
Last Answer : $ A simple but dominant gametophyte is called Prothallus. ! Prothallus is found in Bryophytes. A. If both As ... wrong D. If both As and R are wrong.
Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta
Last Answer : (1) Pteridophyta Explanation: Prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte. The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure.
Description : What is Prothallus?
Last Answer : Prothallus is an independent structure developed in pteridophytes which produces male and female gametes,
Description : .Prothallus (gametophyte) gives rise to fern plant (sporophyte) without fertilization. It is (a) apospory (b) apogamy (c) parthenocarpy (d) parthenogenesis.
Last Answer : (b) apogamy
Description : .In a type of apomixis known as adventive embryony, embryos develop directly from the (a) nucellus or integuments (b) zygote (c) synergids or antipodals in an embryo sac (d) accessory embryo sacs in the ovule
Last Answer : (a) nucellus or integuments
Description : Apomictic embryos in Citrus arise from (a) synergids (b) maternal sporophytic tissue in ovule (c) antipodal cells (d) diploid egg.
Last Answer : (b) maternal sporophytic tissue in ovule
Description : In angiosperms, pollen tube liberate their male gametes into the (a) central cell (b) antipodal cells (c) egg cell (d) synergids.
Last Answer : d) synergids.
Description : Through which cell of the embryo sac, does the pollen tube enter the embryo sac? (a) Egg cell (b) Persistant synergid (c) Degenerated synergids (d) Central cell
Last Answer : c) Degenerated synergids
Description : Filiform apparatus is characteristic feature of (a) aleurone cell (b) synergids (c) generative cell (d) nucellar embryo.
Last Answer : (b) synergids
Description : In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result (a) there is high degree of sterility (b) one can conclude that the plant is apomictic (c) self fertilization is prevented (d) there is no change in success rate of fertilization.
Last Answer : (c) self fertilization is prevented
Description : In angiosperm female gametophyte is: a) Embryo b) Egg Apparatus c)Embryo sac d) synergids
Last Answer : Ans: c)Embryo sac