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Meristem culture is used to recover virus-free plants from diseased plants.
Ref: NCERT Class 12 Biology Chapter 10: Biotechnology and its Applications Biosafety and Overview of Applications
Active acquired immunity develops when the immune system produces antibodies in response to an infection.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
Active acquired immunity develops when the body produces antibodies and memory cells after recovering from an infection.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
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