According To Darwin, Organic Evolution Is Due To?
a) reduced feeding efficiency in one species due to the presence of interfering species b) competition within closely related species... View Article
Latest Posts
Which Enzyme/S Will Be Produced In A Cell In Which There Is A Nonsense Mutation In The Lac Y Gene?
a) lactose permease and transacetylase b) lactose permease c) transacetylase d) b-galactosidase Answer: d) b-galactosidase
If Both Parents Are Carriers For Thalassemia, Which Is An Autosomal Recessive Disorder, What Are The Chances Of Pregnancy Resulting In An Affected Child?
a) 100% b) 25% c) 50% d) no chance Answer: b) 25%
Pick The Incorrect Statement With Regard To Haemophilia Is.
a) a single protein involved in the clotting of blood is affected b) it is a dominant disease c) it... View Article
Which Mendelian Idea Is Depicted By A Cross In Which The F1 Generation Resembles Both The Parents?
a) codominance b) law of dominance c) inheritance of one gene d) incomplete dominance Answer: b) law of dominance
Artificial Insemination Mean?
a) introduction of sperms of a healthy donor directly into the ovary b) artificial introduction of sperms of a healthy... View Article
Which Of The Following Cannot Be Detected In A Developing Foetus By Amniocentesis?
a) jaundice b) Down syndrome c) sex of the fetus d) Klinefelter syndrome Answer: a) jaundice
Which One Of The Following Is Not The Function Of The Placenta?
a) it secretes oxytocin during parturition b) it facilitates removal of carbon dioxide and waste material from embryo c) it... View Article
Menstrual Flow Occurs Due To Lack Of?
a) FSH b) progesterone c) Vasopressin d) oxytocin Answer: b) progesterone Explanation: Drop in the progesterone levels leads to menstrual... View Article
Which Of The Following Statements Is Correct In Relation To The Endocrine System?
a) releasing and inhibitory hormones are produced by the pituitary gland b) non-nutrient chemicals produced by the body in trace... View Article
Select The Correct Statement With Respect To Locomotion In Humans.
a) the joint between adjacent vertebrae is a fibrous joint b) the vertebral column has 10 thoracic vertebrae c) accumulation... View Article
A Pregnant Female Delivers A Baby Who Suffers From Stunted Growth, Mental Retardation, Low Intelligence Quotient And Abnormal Skin. This Is The Result Of?
a) over secretion of pars distalis b) cancer of thyroid glands c) low secretion of growth hormone d) deficiency of... View Article
The Essential Chemical Components Of Many Coenzymes Are?
a) nucleic acids b) vitamins c) proteins d) carbohydrates Answer: b) vitamins Explanation: Coenzymes are loosely attached organic sections of... View Article
Macromolecule Chitin Is?
a) simple polysaccharide b) sulphur containing polysaccharide c) phosphorus containing polysaccharide d) nitrogen containing polysaccharide Answer: d) nitrogen containing polysaccharide... View Article
The Golgi Complex Plays A Major Role?
a) in post translational modification of proteins and glycosidation of lipids b) as energy transferring organelles c) in digesting proteins... View Article
What External Changes Are Visible After The Last Moult Of A Cockroach Nymph?
a) labium develops b) both forewings and hind wings develop c) anal cerci develop d) mandibles become harder Answer: b)... View Article
The H-zone In The Skeletal Muscle Fibre Is Due To?
a) extension of myosin filaments in the central portion of the A-band b) the central gap between actin filaments extending... View Article
One Of The Representatives Of Phylum Arthropoda Is?
a) silverfish b) flying fish c) silverfish d) cuttlefish Answer: c) silverfish
Which Group Of Animals Belong To The Same Phylum?
a) Sponge, sea anemone, starfish b) prawn, scorpion, locusta c) earthworm, pinworm, tapeworm d) malarial parasite, amoeba, mosquito Answer: b)... View Article
Which Of The Following Are Correctly Matched With Respect To Their Taxonomic Classification?
a) spiny anteater, sea urchin, sea cucumber-echinodermata b) house fly, butterfly, tsetse fly, silverfish-insecta c) centipede, millipede, spider, scorpion-insecta d)... View Article
