Plant Science Questions - Evaluate Yourself ...!!!!

1.Nitrogen fixing microorganisms are also called as ?  

    a.Phototroph b.Diazotroph   c.Autotrophs   d.Auxotroph

2.Differential sex expression is found in which crop? 

    a.Castor b.Maize c.Pigeonpea d.Wheat

3.Hot water treatment for smut disease was discovered by ? 

    a.Prevost b.Jensen c.Erikson d.Biffen

4..Presence of ‘B’ line present in ‘A’ line are called ?

    a.pollen shedders b.partials c.shedding tassels d.offtype

5.Types of ribosomes found in prokaryotes are ? 
     
    a.60S b.70S c.80S d.90S

6.Designated disease of sunflower is ?

    a.powdery mildew b.downy mildew c. Rhizopus head rot d. Rust

7.Bengal famine was caused due to ?

    a.Phytophthora infestans b.Albugo candida c.Alternaria d.Helminthosporium oryza

8..PEP carboxylase enzyme if found in the? 

    a.Bundle sheath cell b.Mesophyll cells c.Mitochondria d.Stroma

9.If plant growth is plotted onto a curve wrt  time what would be the shape of the graph?

     a.L shape b.Parabolic c.S shape d.Hyperbolic

10.The microbial breakdown of protein under anaerobic condition is ?

     a.Levening b.Putrifaction c.Fructification d.none of the above

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Answers
1.Diazotrophs
2.Castor
3.Jensen
4.pollen shedder
5.70S
6.Downy mildew
7.Helminthosporium oryza
8.Mesophyll cells
9.S shaped
10.Putrifaction