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Which of the following methods CANNOT be used for ab initio determination of the three dimensional structure of proteins? 1. X-ray crystallography 2. Nuclear magnetic resonance 3. Cryo electron Microscopy […]

The sum of the circumference of the circle and the perimeter of square is 184 cm. The diameter of the circle is 28 cm. What is the sum of the […]

The term ‘biotechnology’ was coined by 1. Fredrick Sanger 2. Kary Mullis 3. Karl Ereky 4. James Watson Introduction to Biotechnology Biotechnology is one of the most influential scientific fields […]

Lichen is an example of symbiotic relationship between 1. Bacteria and algae 2. Plant and bacteria 3. Algae and fungi 4. Plant and algae   Introduction to Lichen Lichen is […]

Which of the following enzymes is NOT a part of the DNA replication machinery? 1. DNA helicase 2. Primase 3. DNA polymerase 4. DNA endonuclease Introduction to DNA Replication Machinery […]

There are two numbers such that the sum of thrice the first number and twice the second number is 180 and the difference of the four times the first number […]

What is the molar concentration of Dinitrophenol (DNP) in a solution made by dissolving 184.107 mg DNP in one liter of water? [Molar mass: 184.107 g/mole] 1. 1000 µ𝑀 2. […]

Which of the following is a marker enzyme for the Lysosome? 1. Acid phosphatase 2. Signal peptidase 3. Succinate dehydrogenase 4. Lactate dehydrogenase   Introduction to Lysosomes and Marker Enzymes […]

Which of the following plant organs is NOT a potential explant for tissue culture? 1. Seed 2. Flower 3. Root 4. Shoot tip Introduction to Plant Tissue Culture Plant tissue […]