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Q.61 Reserpine is obtained from the roots? 1. Rauwolfia serpentina 2. Datura innoxia 3. Withania somnifera 4. Digitalis purpurea Reserpine Source: Rauwolfia Serpentina Roots Explained Reserpine, a key alkaloid used […]

Q.60 What is the major secondary metabolite present in Clove buds? 1. Thymol 2. Eugenol 3. Zingiberine 4. Piperine Bryophytes were unique for their gametophyte dominance, but in medicinal botany, […]

Q.59 A stele which does NOT contain a central pith is called as: 1. Solenostele 2. Dictyostele 3. Protostele 4. Siphonostele Stele Without Central Pith A stele is the central […]

Q.58 Which of the following Gymnosperms possess winged pollen grains? 1. Dandelion 2. Cycas 3. Pinus 4. Ephedra Gymnosperms with Winged Pollen Grains: Pinus Confirmed Pinus, a conifer gymnosperm, produces […]

Q.57 Which of the following is not an identifying feature of Cycas 1. Antherozoids are motile 2. Anatomical features of the leaflet indicating it as a mesophyte 3. Circinate venation […]

Q.55 Bryophytes are distinct from all other land plants in having an independent _________ and a dependent ________. 1. sporophyte, gametophyte 2. female, male 3. gametophyte, sporophyte 4. antherozoid, oogonia […]

Q.54 Which of the following is/are prophylactic (preventive) methods of plant disease control (A). Eradication of alternate host (B). Spraying plants with pesticides and fungicides on a regular basis (C). […]

Q.53 The alternate host for Puccinia graminis is 1. Delonix regia 2. Thalictrum falvum 3. Muehlenbergia hugeli 4. Berberis vulgaris Alternate Host of Puccinia graminis: Berberis vulgaris Revealed Puccinia graminis, […]

Q.52 Match List I with List II List I List II A. Penicillin B. Fermentation of sucrose and molasses to produce citric acid C. Fermentation of carbohydrates to produce ethyl […]