Which One Of The Following Is An Example Of A Negative Feedback Loop In Humans?
a) Salivation of mouth at the sight of delicious food b) Constriction of skin blood vessels and contraction of skeletal... View Article
Latest Posts
Biological Organization Starts With?
a) Cellular level b) Submicroscopic molecular level c) Organismic level d) Atomic level Answer: b) Submicroscopic molecular level
Which One Of The Following Polymers Is Prepared By Condensation Polymerization?
a) Teflon b) Nylon-66 c) Rubber d) Styrene Answer: b) Nylon-66
RNA And DNA Are Chiral Molecules, Their Chirality Is Due To?
a) D-sugar Component b) Chiral bases c) Chiral phosphate ester units d) L-sugar component Answer: a) D-sugar Component
Which One Of The Following Vitamins Is Water-soluble?
a) Vitamin E b) Vitamin B c) Vitamin K d) Vitamin A Answer: b) Vitamin B
What Is Antisense Technology?
a) when a piece of RNA that is complementary in sequence is used to stop expression of a specific gene... View Article
Which Of The Following Pairs Of Organs Includes Only The Endocrine Glands?
a) Thymus and Testes b) Pancreas and Parathyroid c) Parathyroid and Adrenal d) Adrenal and Ovary Answer: c) Parathyroid and... View Article
Cornea Transplant In Humans Is Almost Never Rejected. This Is Because?
a) it is composed of enucleated cells b) it has no blood supply c) its cells are least penetrable by... View Article
Human Insulin Is Being Commercially Produced From A Transgenic Species Of?
a) Rhizobium b) Mycobacterium c) Escherichia d) Saccharomyces Answer: c) Escherichia
Main Objective Of Production/Use Of Herbicide Resistant Gm Crops Is To?
a) encourage eco-friendly herbicides b) eliminate weeds from the field without the use of herbicides c) eliminate weeds from the... View Article
Which One Of The Following Proved Effective For Biological Control Of Nematode Disease In Plants?
a) Gliocladium virens b) Pseudomonas cepacia c) Pisolithus tinctorius d) Paecilomyces lilacinus Answer: b) Pseudomonas cepacia
The Linking Of Antibiotic Resistance Gene With The Plasmid Vector Became Possible With?
a) DNA polymerase b) Endonucleases c) DNA ligase d) Exonucleases Answer: c) DNA ligase Explanation: DNA ligase help to link... View Article
Modern Detergents Contain Enzyme Preparations Of?
a) Thermoacidophiles b) Alkaliphiles c) Acidophiles d) Thermophiles Answer: c) Acidophiles
Cry 1 Endotoxins Obtained From Bacillus Thuringiensis Are Effective Against?
a) Nematodes b) Flies c) Mosquitoes d) Boll worms Answer: d) Boll worms Explanation: The cotton bollworm is regulated by... View Article
Which One Of The Following Is The Correct Statement Regarding The Particular Psychotropic Drug Specified?
a) Morphine leads to delusions and disturbed emotions b) Opium stimulates nervous system and causes hallucinations c) Hashish causes after... View Article
Which One Of The Following Pairs Of Codons Is Correctly Matched With Their Function Or The Signal For The Particular Amino Acid?
a) AUG, ACG – start/methionine b) UAG, UGA – stop c) GUU, GCU – alanine d) UUA, UCA – leucine... View Article
To Which Type Of Barriers Under Innate Immunity Do The Saliva In The Mouth And The Tears From The Eyes Belong?
a) physiological barriers b) cellular barriers c) cytokine barriers d) physical barriers Answer: a) physiological barriers
Gel Electrophoresis Is Used For?
a) construction of recombinant DNA by joining with cloning vectors b) separation of DNA fragments according to their size c)... View Article
For ordinary terrestrial experiments, the observer in an inertial frame in the following cases is
1) a child revolving in a giant wheel 2) a driver in a sports car moving with a constant high... View Article
A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 m height further, find the magnitude of the force. (take, g =10 ms-2.)
1) 4 N 2) 16 N 3) 20 N 4) 22 N Answer: 4) 22 N Solution: Consider the equation v2... View Article
