List of top Questions asked in TS PGECET- 2026

Which among the following is not a key component of signal transduction process?

Match the following \[ \begin{array}{|c|l|c|l|} \hline & List-I & & List-II \hline A & \textit{Azotobacter} & I & \text{Anaerobic nitrogen fixer} B & \textit{Clostridium} & II & \text{Symbiotic nitrogen fixer} C & \textit{Rhizobium} & III & \text{Free-living aerobic fixer} D & \text{Leghemoglobin} & IV & \text{Oxygen buffering protein} \hline \end{array} \] The correct answer is

Select the enzyme complex responsible for biological nitrogen fixation?

Identify the obligate intracellular microorganism?

Consider the following and choose the correct answer Assertion [A]: Tautomeric shifts in DNA bases are a source of spontaneous mutations. Reason [R]: Rare tautomeric forms have altered hydrogen-bonding patterns. The correct answer is

Consider the following and choose the correct answer Assertion [A]: B-DNA is the most stable and predominant form of DNA under physiological conditions. Reason [R]: B-DNA possesses major and minor grooves. The correct answer is

The site of light reactions of photosynthesis occurs on

What are the products of the light reaction utilized during the Calvin cycle?

Identify the following organism which is a symbiotic nitrogen fixer?

Which of the following yields the maximum ATP?

Consider the following and choose the correct answer Assertion [A]: Aerobic respiration is more efficient than anaerobic respiration. Reason [R]: Oxygen allows complete oxidation of glucose. The correct answer is

Match the following \[ \begin{array}{|c|l|c|l|} \hline & Genetic element/process & & Characteristic \hline A & \text{F plasmid} & I & \text{Uptake of naked DNA} B & \text{Transformation} & II & \text{Sex pilus formation} C & \text{Generalized transduction} & III & \text{Random bacterial DNA transfer} D & \text{Hfr strain} & IV & \text{High-frequency chromosomal gene transfer} \hline \end{array} \] The correct answer is

Which of the following cellular components is present in eukaryotic cells but absent in prokaryotic cells?

A bacterium has a generation time of \(30\) minutes. Starting with \(1\times10^4\) (\(10000\)) cells, how many cells will be present after \(2\) hours?

Which of the following correctly matches a virus with its type of nucleic acid?

Viruses are considered as living organisms because they perform

Origin of replication usually contains

A multistep method used to solve differential equations is

If \(y_1,\;y_2\) are two dependent solutions of a second order linear homogeneous differential equation then \(y_1y_2'-y_2y_1'\) is

If \[ F(x)= \begin{cases} 0, & x[2mm] \left(\dfrac{x+7}{a}\right), & -7[2mm] 1, & x>7, \end{cases} \] represents the probability distribution function of a continuous random variable, then \(a=\)

Mean and variance pair is given below. A pair representing the data of a binomial distribution is

The general solution of one dimensional wave equation \[ \frac{\partial^2v}{\partial t^2} = c^2 \frac{\partial^2v}{\partial x^2} \] is \(u(x,t)=\)

If \(x_0=1.2\) is the initial guess of the solution of \(x^3+2x-1=0\), then the \(1^{\text{st}}\) iteration solution \(x_1=\)

An eigen vector of the matrix \[ A= \begin{bmatrix} 3 & 2 1 & 2 \end{bmatrix} \] is

Gravity loss during rocket flight occurs because