Practice question

Quarantine imposes enforced isolation and testing to intercept exotic pathogens, nematodes, insects and weed seeds hidden in imported seeds, tubers or cuttings. Legal basis includes Destructive Insects and Pests Act 1914 and Plant Quarantine Order 2003 requiring inspection at seaports, airports and land customs. NBPGR National Quarantine Laboratory performs visual inspection, X-ray for insect damage, blotter test for fungi like Tilletia and Fusarium, washing test for seeds, and serological ELISA and PCR for viruses such as banana bunchy top and potato latent viruses. Suspect samples undergo fumigation with aluminum phosphide, hot water treatment at 52C, or pesticide dip before clearance. Effective quarantine prevented entry of devastating pathogens and preserves ecosystem equilibrium and export credibility of Indian agricultural produce. This understanding supports competitive exam preparation for NEET, GATE and CSIR NET concepts linking genotype with phenotype through molecular pathways involving transcription factors, hormones and metabolic enzymes that regulate development, adaptation and reproductive biology in applied breeding programs.