List of top Questions asked in GATE BT

Which of the following conditions will contribute to the stability of a gene pool in a natural population?
P. Large population
Q. No net mutation
R. Non-random mating
S. No selection

Match the media component used in mammalian cell culture (Column I) with its respective role (Column II).

Match the cell type (Column I) with its function (Column II).

A \( 2 \times 2 \) matrix \( P \) has an eigenvalue \( \lambda_1 = 2 \) with eigenvector \( x_1 = \begin{pmatrix} 1 \\ 0 \end{pmatrix} \) and another eigenvalue \( \lambda_2 = 5 \), with eigenvector \( x_2 = \begin{pmatrix} 1 \\ 1 \end{pmatrix} \). The matrix \( P \) is

Match the stationary phase (Column I) with its corresponding chromatography technique (Column II).

Which of the following statements are CORRECT for a controller?

Among individuals in a human population, minor variations exist in nucleotide sequences of chromosomes. These variations can lead to gain or loss of sites for specific restriction enzymes. Which of the following techniques is used to identify such variations?

Assuming independent assortment and no recombination, the number of different combinations of maternal and paternal chromosomes in gametes of an organism with a diploid number of 12 is _________.

A microorganism is grown in a batch culture using glucose as a carbon source. The apparent growth yield is 0.5 g biomass / g substrate. The initial concentrations of biomass and substrate are 2 g L\(^{-1}\) and 200 g L\(^{-1}\), respectively. Assuming that there is no endogenous metabolism, the maximum biomass concentration that can be achieved is _________ g L\(^{-1}\).

The maximum value of the function \( f(x) = 3x^2 - 2x^3 \) for \( x>0 \) is _________ .

Which of the following is NOT used for generating an optimal alignment of two nucleotide sequences?

The recognition sequences of four Type-II restriction enzymes (RE) are given below. The symbol (|) indicates the cleavage site. Identify the RE that generates sticky ends.

In binomial nomenclature, the name of a bacterial strain is written with the first letter of _____} word(s) being capitalized.

The type of nucleic acid present in \( \lambda \)-phage is

Which of the following statements about reversible enzyme inhibitors are CORRECT?
P. Uncompetitive inhibitors bind only to the enzyme-substrate complex.
Q. Non-competitive inhibitors bind only at a different site from the substrate.
R. Competitive inhibitors bind to the same site as the substrate.

Match the component of eukaryotic cells (Column I) with its respective function (Column II).

In animal cells, the endogenously produced miRNAs silence gene expression by

Terpenoids are made of _________ units.

Match the microbial product (Column I) with its respective application (Column II).

What is the order of the differential equation given below?
\[ \frac{d^2y}{dx^2} - 6x = 3x^4 - 2x^3 + 2 \]

If the eigenvalues of a \(2 \times 2\) matrix \(P\) are 4 and 2, then the eigenvalues of the matrix \(P^{-1}\) are

For a double-pipe heat exchanger, the inside and outside heat transfer coefficients are 100 and 200 W m\(^{-2}\) K\(^{-1}\), respectively. The thickness and thermal conductivity of the thin-walled inner pipe are 1 cm and 10 W m\(^{-1}\) K\(^{-1}\), respectively. The value of the overall heat transfer coefficient is _________ W m\(^{-2}\) K\(^{-1}\).

Match the media component (Column I) with its role (Column II).

The binding free energy of a ligand to its receptor protein is \( -11.5 \, \text{kJ mol}^{-1} \) at 300 K. What is the value of the equilibrium binding constant?

The overall stoichiometry for an aerobic cell growth is \( 3C_6H_{12}O_6 + 2.5 NH_3 + O_2 \rightarrow 1.5 C_a H_b O_c N_d + 3 CO_2 + 5 H_2O \).
What is the elemental composition formula of the biomass?