NR 602/NR602 BOTANY FINAL EXAM LATEST 2023/2024 REAL EXAM QUESTIONS AND ANSWERS|A+ GRADED

1. Which one among the following statements is FALSE about DNA? (A) Located in chromosomes (B) Carries genetic information from parent to offspring (C) Abundantly found in the cytosol (D) There is a precise correlation between amount of DNA and number of sets of chromosome per cell 2. Which one among the following acts as the inducer of lac operon? (A) Glucose (B) Fructose (C) Lactose (D) Galactose 3. Kary Mullis is associated with (A) RFLP (B) PCR (C) Phosphorylation reaction (D) RAPD 4. Bacillus thuringiensis is used in the biocontrol of (A) Nematodes (B) Fungal pathogens (C) Bacterial pathogens (D) Insect pests 5. Which one among the following natural systems in India is a Hotspot of Biodiversity? (A) Sunderbans (B) Western Ghats (C) Eastern Ghats (D) Gangetic plains 6. Which one among the following is an example of ex-situ conservation? (A) National park (B) Wildlife sanctuary (C) Seed bank (D) Sacred groves 7. Which one among the following is the cause for man-wildlife conflicts? (A) Reduction in the availability of natural food resources (B) Increase in the forest area (C) Adequate rainfall (D) Curiosity of wildlife animals that leads for the invasion to outside the forest area 8. The Jim Corbett National Park is famous for notable man-eaters (A) Leopard (B) Tiger (C) Bear (D) Lion 9. The first transgenic virus-resistant plant was (A) Rice (B) Cotton (C) Tobacco (D) Tomato 10. Enzyme targeted in gene silencing for delaying fruit ripening in tomato is (A) Polygalacturonase (PG) (B) Glyphosate (C) ADA (D) P53 11. Polyploidy is induced through (A) Irradiation (B) Mutagenic chemicals (C) Ethylene (D) Colchicine 12. Heterosis is the (A) Appearance of spontaneous mutation (B) Induction of mutation (C) Mixture of two or more traits (D) Superiority of hybrids over their parents 13. Somatic hybridization is achieved through (A) Grafting (B) Conjugation (C) Protoplast fusion (D) Recombinant DNA technology 14. A virologist wants to study the viral effects on plants. Which one among the following plant parts should be excluded? (A) Pith (B) Shoot apex (C) Phloem (D) Cortex 15. The genotypic ratio of a monohybrid cross is (A) 1 : 2 : 1 (B) 3 : 1 (C) 2 : 1 : 1 (D) 9 : 3 : 3 : 1 16. An exception to Gregor Johann Mendel’s laws is (A) Independent assortment (B) Linked genes (C) Dominance (D) Incomplete dominance 17. Which term of genetics represents the potential ability of a plant cell to grow into a complete plant? (A) Pluripotency (B) Totipotency (C) Cloning (D) Variation 18. Experimental plant for Gregor Johann Mendel’s genetic study is (A) Onion (B) Carrot (C) Garden pea (D) Lily 19. A circle divided into sectors proportional to the frequency of items shown is called (A) Bar chart (B) Pie chart (C) Histogram (D) Frequency polygon 20. Which of the following is the protein database?