Botany Questions and Answers

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


Ans: C


2.  Fresh foods and fruits contain more of
 
A. fats
B. vitamins
C. carbohydrates
D. proteins


Ans: B


3.  Human heart contains
 
A. 2 chambers
B. 3 chambers
C. 4 chambers
D. 6 chambers


Ans: C


4.  Which is the largest organ in human body?
 
A. lungs
B. liver
C. skin
D. heart


Ans: C



5.  Brain fever is spread to man by
 
A. mosquito
B. air
C. water
D. house fly


Ans: A


6.  The term chromosome was given by
 
A. E.G. Balibiani
B. Chargaff
C. W. Waldeyer
D. Watson and Crick


Ans: C


7.  Artificial silk is prepared from
 
A. wood pulp
B. wool
C. synthetic fibres
D. phloem fibres

Ans: C


8.   Which one of the following is a green house gas
 
A. Oxygen
B. Carbon dioxide
C. Ozone
D. Nitrogen

Ans: B



9.  Botanical name of paddy is
 
A. Tritium vulgare
B. Solanum nigrum
C. Eleusine coracana
D. Oryza sativa


Ans: D


10.  In man the number of chromosome is
 
A. 12
B. 24
C. 36
D. 46

Ans: D