General Knowledge - Science - Biology

1. DNA structure was discovered by
    A. Karl Land Steiner
    B. Gregor Mendel
    C. Watson and Crick
    D. Hargobind Khorana

    Answer: C. Watson and Crick

2. Fresh foods and fruits contain more of     

    A. fats
    B. vitamins
    C. carbohydrates
    D. proteins

    Answer:    B. vitamins

3. Human heart contains     

    A. 2 chambers
    B. 3 chambers
    C. 4 chambers
    D. 6 chambers

    Answer: C. 4 chambers

4. Which is the largest organ in human body? 

    A. lungs
    B. liver
    C. skin
    D. heart

    Answer: C. skin

5. Brain fever is spread to man by     

    A. mosquito
    B. air
    C. water
    D. house fly
  
    Answer:   A. mosquito


6. The term chromosome was given by     

    A. E.G. Balibiani
    B. Chargaff
    C. W. Waldeyer
    D. Watson and Crick

    Answer: C. W. Waldeyer

7. Artificial silk is prepared from     

    A. wood pulp
    B. wool
    C. synthetic fibres
    D. phloem fibres

    Answer C. synthetic fibres

8. Which one of the following is a green house gas     

    A. Oxygen
    B. Carbon dioxide
    C. Ozone
    D. Nitrogen

    Answer: B. Carbon dioxide

9. Botanical name of paddy is     

    A. Tritium vulgare
    B. Solanum nigrum
    C. Eleusine coracana
    D. Oryza sativa

    Answer:   D. Oryza sativa

10. In man the number of chromosome is     

    A. 12
    B. 24
    C. 36
    D. 46

    Answer: D. 46