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Q.23 An alpha particle and a proton have the same de Broglie wavelength. Which of the following is also the same for the two particles if they are moving at […]

Q.22 In a p-n junction, the depletion region has a width of 3 × 10-7 m and the intensity of electric field in the depletion region is 106 V/m. An […]

Q.21 Let Z be the set of all integers and f and g are one-one mappings from Z into itself. If    −−=++= nodd for n f(n) = […]

Q.20 Let P(t) denote the population of a species at time t. If P(t) is given by the equation dP/dt = P(1 – P) and if the initial population P(0) […]

Q.19 A line L parallel to the vector î + ĵ + k̂ passes through the point (1,2,4) and meets the xy-plane at a point P. The distance between the […]

Q.18 Match the entries in Group I with the entries in Group II Group I Group II P) Yeast 2 Hybrid System 1) in vivo protein-DNA interaction Q) Electrophoretic Mobility […]

Q.17 Two mammalian cell lines with doubling times of 12 h and 36 h were cultured with radioactive thymidine for 8 h. The cells were further cultured without the radioactive […]

Q.16 In an experiment conducted in the dark, isolated chloroplasts are kept in buffer (pH 4.0) at 4 °C until their internal pH is equal to 4.0. Then, they are […]

Q.15 Match the entries in Group I with the entries in Group II Group I Group II P) Bacteria 1) Leishmaniasis Q) Virus 2) Anthrax R) Fungus 3) Rubella S) […]

Q.14 Match the entries in Group I with the entries in Group II Group I Group II P) DNA replication 1) Hershey and Chase Q) Genetic Code 2) Miller and […]