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Botany Questions and Answers

General Science
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1. DNA structure was discovered by
 
  • A. Karl Land Steiner
  • B. Gregor Mendel
  • C. Watson and Crick
  • D. Hargobind Khorana
 
2. Fresh foods and fruits contain more of
 
  • A. fats
  • B. vitamins
  • C. carbohydrates
  • D. proteins
 
3. Human heart contains
 
  • A. 2 chambers
  • B. 3 chambers
  • C. 4 chambers
  • D. 6 chambers
 
 
4. Which is the largest organ in human body?
 
  • A. lungs
  • B. liver
  • C. skin
  • D. heart
 
5. Brain fever is spread to man by
 
  • A. mosquito
  • B. air
  • C. water
  • D. house fly