If in a pond there were 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28, the birth rate would be:

Agarose gel electrophoresis is employed to check the progression of a restriction enzyme digestion of DNA. In this technique, the movement of a DNA does not depend on -

Which one of the following is an example of community protected biodiversity conservation method?

Observe the figure and answer the following:


Identify the true statements:
A. Stable genetic equilibrium results in evolution
B. Genetic equilibrium means the constant gene pool in population remains constant
C. In a given population one can find out the frequency of occurrence of alleles of a gene or a locus
D. The frequency of occurrence of alleles of a gene remain same through generations
Choose the correct answer from the options given below:

Observe the figures and answer the question.

The spent slurry in bio-gas plant is used.

Read the following passage carefully and answer the given questions.
Theory of Evolution
The evolution of life is a gradual process through which simple organisms are transformed into complex life forms over billions of years. It involves genetic changes, adaptation to the environment, and the emergence of diversity in species. Fossil records provide evidence of extinct life forms and transitional stages. Evolution is influenced by factors such as mutation, genetic recombination, and environmental pressure, shaping the biodiversity we see today. Charles Darwin and Alfred Russel Wallace were pioneering naturalists who developed the theory of evolution by natural selection.
Alfred Russel Wallace, a naturalist, arrived at conclusions similar to Darwin while working in:

Which one of the following diagnostic techniques is based on the principle of antigen-antibody interaction?

Certain Aldehydes, Retore and certain alcohol undergo iodoform test. Certain Aldehydes ketones undergo aldol condensation. While certain aldehydes undergo Cannizaro's reaction. Aldehydes responds to tollen reagent and fehling reagent test.
Which amongst the following will respond to Tollens' reagent test?
A. Benzaldehyde \((C_6H_5CHO)\)
B. Formaldehyde \((HCHO)\)
C. Formic acid \((HCOOH)\)
D. Acetone \((CH_3COCH_3)\)
Choose the correct option

In what ratio, water must be added to dilute honey costing ₹ 320 per liter so that the resulted syrup would be worth ₹ 280 per liter?

The electric field vector of a plane electromagnetic wave oscillates sinusoidally at a frequency of \(4.5 \times 10^{10} \text{ Hz}\) in a medium with permittivity \(\epsilon_0\) and permeability \(\mu_0\). The wavelength of the wave is

If \(\left|\begin{array}{ll}x & 8 \\ 4 & x\end{array}\right|=\left|\begin{array}{cc}6 & 2 \\ 18 & 6\end{array}\right|\), then \(x\) is/are equal to:

Which of the following statements is incorrect with respect to the plot of molar conductivity (\(\Lambda_m\)) versus square root of concentration (\(c^{1/2}\)) for electrolytes in solution?

Three capacitors each of capacitance 9 pF are connected in series. The capacitance of the combination would be :