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Q.3 The influenza virus carries functional surface projections called spikes which contain a unique enzyme known as (1) RNA polymerase (2) DNA polymerase (3) Neuraminidase (4) Hexokinase The correct answer […]

Q.2 Heterocyst, a thick-walled, pale-yellow, barrel-shaped structure found in blue-green algae, helps in (1) Defence (2) N2 fixation (3) CO2 fixation (4) Sulfur metabolism The correct answer is (2) N2 […]

Q.1 False branching of thallus is observed in (1) Rivularia (2) Scytonema (3) Oedogonium (4) Volvox The correct answer is (2) Scytonema. False branching of the thallus occurs when a trichome […]

Q.70 Mendel’s first three postulates include: A. Linkage of genes B. Unit factors in pairs C. Dominance/Recessiveness D. Monohybrid cross E. Segregation Choose the correct answer from the options given […]

Q.69 For fusion of protoplast this chemical is used as a fusogen: l. Potassium Sulphate 2. Chloroform 3. Polyethylene Glycol (PEG) 4. Glycerol Correct Answer: Option 3 – Polyethylene Glycol […]

Q.68 PCR involves the following steps. What is the correct sequence? A. Visualisation of amplified product B. PCR machine run C. DNA isolation D. Loading of PCR run E. PCR […]

Q.67 Match List I with List II LIST I Metabolic Cycles LIST II Organelle(s) involved A. Glyoxylate Cycle B. Citric acid cycle C. Calvin Cycle D. C₂ oxidative Photosynthesis cycle […]

Q.66 Given below are two statements: Statement I: Pyrethrum compound is derived from several species of Parthenium which is widely used as an insecticidal preparation. Statement II: Parthenium is a […]

Q.65 The fatty acid synthesis is carried out in wålich part of the plant cell? l. Cytosol 2. Plastids 3. Mitochondria 4. Lysosome Fatty acid synthesis in plant cells occurs […]

Q.64 During biological nitrogen fixation, __________ ATPs are required to fix molecular nitrogen into ammonia. 1. Four 2. Eight 3. Thirty two 4. Sixteen During biological nitrogen fixation, 16 ATPs […]