page contents

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


No comments: