Question Bank Directory

Mannitol is a sugar alcohol. It is stored food in:

The wavelength of the first spectral line in the Balmer series of hydrogen atom is 6561 Å. The wavelength of the second spectral line in the Balmer series of singly ionized helium atom is:

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?

Two bodies of masses $m_1$ and $m_2$ have equal kinetic energies. If $p_1$ and $p_2$ are their respective momenta, then the ratio $p_1 : p_2$ is equal to:

Match the following organisms with the products they produce: Column I (a) Aspergillus niger (b) Acetobacter aceti (c) Clostridium butyricum (d) Lactobacillus Column II (i) Ethanol (ii) Citric acid (iii) Lactic acid (iv) Acetic acid (v) Butyric acid

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:

Match List-I with List-II: List-I A. Saccharomyces cerevisiae B. Aspergillus niger C. Trichoderma polysporum D. Clostridium butylicum List-II I. Citric acid II. Butyric acid III. Ethanol IV. Cyclosporin-A

Transfer characteristics [output voltage ($V_o$) vs input voltage ($V_i$)] for a base biased transistor in CE configurations are as shown in the figure. For using the transistor as a switch, it is used:

Which one of the following options gives one correct example of convergent evolution and divergent evolution respectively?

Study the pathway given below: In which of the following options, correct words for all the three blanks A, B and C are indicated?

During sewage treatment, biogases are produced which include:

A logic circuit provides the output $Y$ as per the following truth table: $A \quad B \quad Y$ $0 \quad 0 \quad 1$ $0 \quad 1 \quad 0$ $1 \quad 0 \quad 1$ $1 \quad 1 \quad 0$ The expression for the output $Y$ is:

In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?

Which one of the following concerns photophosphorylation?

Milk of transgenic 'Cow Rosie' was nutritionally more balanced product for human babies than natural cow milk because it contained:

The moment of inertia of a uniform circular disc is maximum about an axis perpendicular to the disc and passing through:

When gene targeting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as:

If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :

Artificial selection to obtain cows yielding higher milk output represents:

The major organic product in the reaction, $CH_3 — O — CH(CH_3)_2 + HI \rightarrow \text{Product}$ is: