Alzheimer Disease In Humans Is Associated With The Deficiency Of?
a) dopamine b) gamma aminobutyric acid c) acetylcholine d) glutamic acid Answer: c) acetylcholine
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A Person Likely To Develop Tetanus Is Immunised By Administering?
a) dead germs b) weakened germs c) wide spectrum antibiotics d) preformed antibiotics Answer: b) weakened germs
If A Live Earthworm Is Pricked With A Needle On Its Outer Surface Without Damaging Its Gut, The Fluid That Comes Out Is?
a) excretory fluid b) slimy mucus c) haemolymph d) coelomic fluid Answer: d) coelomic fluid
What Will Happen If The Stretch Receptors Of The Urinary Bladder Wall Are Totally Removed?
a) urine will not collect in the bladder b) there will be no micturition c) urine will continue to collect... View Article
The Cell Junctions Called Tight, Adhering And Gap Junctions Are Found In?
a) Muscular tissue b) Neural tissue c) Epithelial tissue d) Connective tissue Answer: c) Epithelial tissue
A Fruit Developed From Hypanthodium Inflorescence Is Called?
a) Hesperidium b) Caryopsis c) Syconus d) Sorosis Answer: c) Syconus
Peripatus Is A Connecting Link Between?
a) Ctenophores and Platyhelminthis b) Coelenterata and Porifera c) Annelida and Arthropoda d) Mollusca and Echnodermata Answer: c) Annelida and... View Article
Which One Of The Following Is Commonly Used In Transfer Of Foreign DNA Into Crop Plants?
a) Trichoderma harzianum b) Penicillium expansum c) Agrobacterium tumefaciens d) Meloidogyne incognita Answer: c) Agrobacterium tumefaciens
Which One Of The Following Groups Of Animals Is Bilaterally Symmetrical And Triploblastic?
a) Coelentrates (cnidarians) b) Sponges c) Ctenophores d) Aschelminthes (roundworms) Answer: d) Aschelminthes (round worms)
Polyethylene Glycol Method Is Used For?
a) gene transfer without a vector b) energy production from sewage c) seedless fruit production d) biodiesel production Answer: a)... View Article
Manganese Is Required In?
a) nucleic acid synthesis b) chlorophyll synthesis c) photolysis of water during photosynthesis d) plant cell wall formation Answer: c)... View Article
The 3′-5′ Phosphodiester Linkages Inside A Polynucleotide Chain Serve To Join?
a) One nucleoside with another nucleoside b) One nitrogenous base with pentose sugar c) One nucleotide with another nucleotide d)... View Article
Vegetative Propagation Is Pistia Occurs By?
a) Runner b) Offset c) Sucker d) Stolen Answer: b) Offset
Which One Of The Following Is The Correct Description Of A Certain Part Of A Normal Human Skeleton?
a) Parietal bone and the temporal bone of the skull are joined by fibrous joint b) Glenoid cavity is a... View Article
Crocodile And Penguin Are Similar To Whale And Dogfish In Which One Of The Following Features?
a) Lay eggs and guard them till they hatch b) Possess bony skeleton. c) Possess a solid single-stranded central nervous... View Article
The Lac Operon Consists Of?
a) Four regulatory genes only b) One regulatory gene and three structural genes c) Three regulatory genes and three structural... View Article
The Fruit Fly Drosophila Melanogaster Was Found To Be Very Suitable For Experimental Verification Of Chromosomal Theory Of Inheritance By Morgan And His Colleagues Because?
a) A single mating produces two young flies b) Smaller female is easily recognisable from larger male c) It reproduces... View Article
Which One Of The Following Can Not Be Used For Preparation Of Vaccines Against Plague?
a) Avirulent live bacteria b) Heat-killed suspensions of virulent bacteria c) Synthetic capsular polysaccharide material d) Formalin-inactivated suspensions of virulent... View Article
An Elaborate Network Of Filamentous Proteinaceous Structures Present In The Cytoplasm Which Helps In The Maintenance Of Cell Shape Is Called?
a) Endoplasmic Reticulum b) Plasmalemma c) Thylakoid d) Cytoskeleton Answer: d) Cytoskeleton
Three Of The Following Statements About Enzymes Are Correct And One Is Wrong. Which One Is Wrong?
a) Enzymes are highly specific b) Enzymes require optimum pH for maximal activity c) Enzymes are denatured at high temperature... View Article
