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Monday, April 29, 2013

ARS NET objective type questions


1.                  Which pigment is present in tomato – Lycopene

 

2.                  The discoverer of microbial world was : Antony van Leeuwenhoek

 

3.                  The resolution of a compound microscope is : 0.2 microns

 

 4.   All the following bacteria can produce endospores except :

(A) Bacillus (B) Corynebacterium

(C) Clostridia (D) Sporosarcina                   (Ans. (B) Corynebacterium)

4.                  Bacterial spores can be stained with : Malachite green

 

5.                  Biological oxygen demand is a measure of : Extent to which water is polluted with organic compounds

 

6.         DNA fingerprinting is based on :

(A) Repetitive sequences (B) Unique sequences

(C) Amplified sequences (D) Non-coding sequences             (Ans. (B) Unique sequences)

 

7.                  First line of body defense is : Unbroken skin

 

8.                  Father of plant physiology: Stephen Hales

 


9.         All the following multiply by binary fission except :

(A) Bacteria (B) Chlamydiae

(C) Viruses (D) Mycoplasma                                             (Ans. (B) Chlamydiae )

10.  Coenzyme A is a precursor of : Pantothenic acid

 

11.  A spectrometer can measure : scattered light, emitted light and absorbed light

 

12.  β-carotene is precursor of : Vitamin A

 

13.  Bradford assay is used for : estimation of protein

 

14.  ELISA is a non-enzymatic reaction

 

15.   Most abundant RNA types are : tRNA and rRNA

 

16.  Most microarrays consist of a solid support on which is immobilized : DNA

 

17.  Genetic code is triplet and degenerate

 

18.  Sex chromosomes in plant kingdom were first discovered in : Sphaerocarpus

 

19.  In fungi food is stored in the form of : Glycogen

 

20.  Who is known as the Father of Indian Plant Embryology ?-- P. Maheshwari

 

21.  Agrostology is a branch of botany dealing with the study of : Crop production

 

22.  Dalchini is bark of : Cinnamomum

 

23.  Edible part of cauliflower is : Inflorescence

 

24.  Remains of nucellus in a seed is called : Perisperm

 

25.  Coir of commerce is obtained from which part of the coconut ?—Mesocarp

 

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