A. Pasteurization
B. Hydroponic culture technique
C. Genetic engineering (Correct)
D. Biological control techniques
MCQs / Q&A
Starch is converted into maltose by?
A. diastase (Correct)
B. invertase
C. maltase
D. amylase
Conclusion of Mendels work latter became a_____________?
A. Scientific hypothesis
B. Theory
C. Scientific law (Correct)
D. Productive theory
It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?
A. Older sediment layers have equal amount of these radioactive isotopes as that of the young ones
B. Older sediment layers have less amount of these radioactive isotopes as that of the young ones. (Correct)
C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.
D. Older sediment layers did not have these radioactive isotopes
Which are the four most abundant elements in living cells ?
A. carbon, oxygen, nitrogen, sulfur
B. carbon, oxygen, hydrogen, nitrogen (Correct)
C. carbon, oxygen, sulfur, phosphorus
D. carbon, sulfur, hydrogen, magnesium
Which is an organic compound found in most cells ?
A. Water
B. Glucose (Correct)
C. Oxygen
D. Sodium chloride
Most cell membranes are composed principally of ?
A. DNA ad protein
B. Protein and Lipids (Correct)
C. Protein and Chitin
D. Protein and RNA
The evaporative cooling in the respiratory tract of dogs is called?
A. Vasodilation
B. Vasoconstriction
C. Panting (Correct)
D. All of these
Production of sweat and sebum is related with ?
A. Skin (Correct)
B. Liver
C. Lungs
D. GIT
Haemodialysis means cleaning of____________?
A. Urine
B. Blood (Correct)
C. Glomerular filterate
D. Coelomic fluid