I am studying Btech 2nd year in the streem of civil engineering. I want to prepare for GATE ecam. How can I prepare.Give me tips for exam

Which of the following is not an inhibitory substance governing seed dormancy?
Option: 1 Gibberellic acid
Option: 2 Abscisic acid
Option: 3 Phenolic acid
Option: 4 Para-ascorbic acid  

Match the  following with respect to meiosis: (a) Zygotene           (i) Terminalization (b) Pachytene         (ii) Chiasmata  (c) Diplotene           (iii) Crossing over (d) Diakinesis          (iv) Synapsis
Option: 1    (a)         (b)        (c)         (d)  
   (iii)         (iv)       (i)          (ii)
Option: 2   (a)         (b)        (c)         (d)  
  (iv)         (iii)        (ii)          (i)
Option: 3   (a)         (b)        (c)         (d)  
  (i)         (ii)        (iv)         (iii)    
Option: 4   (a)         (b)        (c)         (d)  
  (ii)         (iv)       (iii)         (i)

Which of the following would help in the prevention of diuresis?
Option: 1 More water reabsorption due to underreaction of ADH
Option: 2 Reabsorption of Na and water from renal tubules to aldosterone
Option: 3  Atrial natriuretic factor causes vasoconstriction  
Option: 4 Decreases in secretion renin by JG cells

Identify the correct statement with reference to the human digestive system.  
Option: 1 The ileum opens into the small intestine.
 
Option: 2 Serosn is the innermost layer of the alimentary canal.
 
Option: 3 The ileum is a highly coiled part.
 
Option: 4 The vermiform appendix arises from the duodenum.

Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups  
Option: 1 The gene (I) has three alleles.
 
Option: 2 A person will have only two of the three alleles.
 
Option: 3 When I^A and I^B are present together, they express same type of sugar.
 
Option: 4 Allele "i" does not produce any sugar.