a) 12 b) 40 c) 20 d) 16 Answer: b) 40 Explanation: Biological nitrogen fixation can be represented by the equation as follows: N2 + 8H+ +... View Article
a) Tubers b) Rhizomes c) Corm d) Bulb Answer: a) Tubers Explanation: Vegetative propagation is the asexual reproduction in plants where new... View Article
When a sperm comes in contact with the zona pellucida layer of the female ovum, it induces structural changes in the wall of ovum which restricts... View Article
Entamoeba histolytica is an amoeba which causes amoebiasis in humans. It resides in the human gut and causes diarrhea and stomach ache in their... View Article
a) Southern blotting b) PCR technique c) DNA probes d) Plasmid DNA Answer: c) DNA probes Explanation: A DNA probe can be used to identify... View Article
The modern taxonomic classification is based on phylogeny. Taxonomy is the science of classification and phylogeny is the science of evolutionary... View Article
a) Primary treatment b) Secondary aerobic treatment c) Secondary anaerobic treatment d) Tertiary treatment e) All of the above Answer: b)... View Article
a) CO2 concentration increases b) O2 concentration increases c) HCO3 concentration increases d) HCO3 concentration decreases Answer: a) CO2... View Article
a) tRNA b) mRNA c) DNA sequence d) Ribosome Answer: c) DNA sequence Explanation: When a steroid molecule binds to a specific set of DNA... View Article
a) American soldiers in World War I b) American soldiers in World War II c) Both a) and b) d) None of the above Answer: b) American soldiers... View Article
Pasteurization is the process of heat killing the pathogens and microorganisms present in a beverage or food item. Raw milk obtained directly... View Article
Solution: 270/1000 = 0.27 When we divide a number by 1000, we write the number and mark decimal point after 3 places from right to left. If... View Article
