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Biology Human Diseases Difficulty: Medium

Hepatitis-B is caused by which micro-organism?

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'SILICOSIS' is a The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ? Deficiency of which of the following causes chlorosis__________________? Which one of the following is an example of vestigial organ in man? Match List-I with List-II and select the correct answer: List-I List-II a. Promeristem 1. Based on position b. Apical meristem 2. Based on function c. File meristem 3. Based on plane of divisions d. Ground meristem 4. Based on origin