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Below are the answers to all questions and activities from Chapter 2 of the Kerala 10th Standard Biology Textbook, "Paths of Evolution." The responses are structured, detailed, and designed to align with the chapter’s content, covering case study questions, indicators-based analyses, table completions, and extended activities. The answers avoid referencing specific page numbers as per the request and include application-level insights where relevant. These answers address all questions and activities in the chapter, providing comprehensive, student-friendly responses suitable for examination preparation.
Some examples taken are:
- Why didn't the disease get cured even after giving treatment for the second time?
o Answer: The disease relapsed because a mutation in a specific gene made the tuberculosis bacteria resistant to antibiotics, allowing them to multiply despite treatment, leading to the patient’s death.
- How did the tuberculosis bacteria acquire resistance to antibiotics?
o Answer: A mutation in a specific gene enabled the bacteria to survive antibiotic exposure, allowing resistant bacteria to multiply and cause disease.
- What will happen if these bacteria transmit this ability to their next generations?
o Answer: If resistant bacteria pass this trait to their offspring, the proportion of antibiotic-resistant bacteria will increase, potentially forming multi drug-resistant strains (superbugs), making infections harder to treat.
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Kerala 10th std Biology Textbook Ch 2 Paths of Evolution Textbook Question and Answers.pdf (Size: 512.52 KB / Downloads: 0)