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Q.39 Endospores can be formed by which of the following: Gram (−) negative bacteria Gram (+) positive bacteria Both of the above None of the above Gram-positive bacteria form endospores […]

Q.38 Which one of the following is an obligate anaerobe Halobacterium Thermus aquaticus Chlamydomonas nivalis Clostridium Clostridium is the obligate anaerobe among the options. These bacteria cannot tolerate oxygen due to […]

Q.37 Stomatal opening is stimulated by Red-light Yellow light Blue light Green light Blue light is the primary stimulus for stomatal opening. This occurs through specific photoreceptors in guard cells that […]

Q.36 The site of sucrose synthesis in plants during the process of photosynthesis is Chloroplast Cytosol Mitochondria Golgi apparatus Cytosol is the site of sucrose synthesis in plants during photosynthesis […]

Q.35 The water splitting in photo system-II (PSD) is mediated by metal Mn Mg Fe Ni Mn (Manganese) is the metal mediating water splitting in Photosystem II (PSII) (Option A). […]

Q.34 Principal form of carbohydrate that is translocated through phloem is Glucose Sucrose Fructose Starch Sucrose is the principal form of carbohydrate translocated through phloem (Option B). Phloem sap primarily […]

Q.33 Which of the following is a primary sugar source in translocation of phloem sap. Young leaf Mature leaf Young fruit Shoot tips Mature leaf is the primary sugar source […]

Q.32 Among those given below which plant families have CAM species? Poaceae Zygophyllaceae Cucurbitaceae Asteraceae Zygophyllaceae is the plant family among the options that has CAM species. CAM (Crassulacean Acid […]

Q.31 The structure which is responsible for locomotion in diatoms is (A) Coste (B) Raphe (C) Valve (D) Girdle The structure responsible for locomotion in diatoms is the raphe (Option […]

Q.30 Which one of the following is correct statement for Generalised transduction Occurs during the lysogenic cycle of temperate phage Some new viruses have both viral and bacteria DNA Phages […]