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Q.21 Among the following pteridophytes, the initial steps in evolutionary trend of seed development can be best seen in (1) Lycopodium (2) Selaginella (3) Isoetes (4) Rhynia Selaginella best shows […]

Q.20 The cells of hydrom sheath in Polytrichum are rich in: (1) oils (2) proteins (3) starch (4) chlorophyll pigments Answer: (3) starch Hydrom sheath cells in Polytrichum (haircap moss) […]

Q.19 Retort cells are present in (1) Sphagnum (2) Riccia (3) Funaria (4) Lycopodium Retort cells are present in Sphagnum, specialized dead hyaline cells in the stem cortex with elongated […]

Q.18 Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): Gnetum is closer to angiosperms than gymnosperms. Reason […]

Q.17 The advanced characters exhibited by the members of basidiomycotina include: (A) No specialized sex organ are formed (B) Several types of spore in the life-cycle (C) Spores are endogenous […]

Q.16 ‘Covered smuts’ disease in Barley is caused by (1) Ustilago nuda (2) Ustilago kolleri (3) Ustilago scitamineae (4) Ustilago hordei ‘Covered smuts’ disease in Barley is caused by Ustilago […]

Q.15 Many fungi have no known sexual stages in their life-cycle. Mycologists have traditionally grouped such fungi into (1) Ascomycetes (2) Basidiomycetes (3) Deuteromycetes (4) Zygomycetes Fungi lacking known sexual […]

Q.14 Morchella esculenta, often found growing under trees in orchards, with an edible ascocarp, belongs to the class ________. (1) Zygomycetes (2) Basidiomycetes (3) Ascomycetes (4) Deuteromycetes Morchella esculenta belongs […]

Q.13 Ergotism, which is characterized by gangrene, nervous spasm, burning sensation, hallucinations and temporary ‘insanity’ is caused by (1) Claviceps purpurea (2) Phytophthora (3) Pilobolus (4) Rhizopus stolonifer Answer: (1) […]

Q.12 Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A) : Cotton and linen textiles have […]