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The phase difference between displacement and acceleration of a particle in a simple harmonic motion is:
The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are:
The plant hormone used to destroy weeds in a field
Which is the basis of genetic mapping of the human genome as well as DNA fingerprinting?
In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the:
DNA fingerprinting involves identifying differences in some specific regions in DNA sequence called:
A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is $20 \text{ m/s}^2$ at a distance of $5 \text{ m}$ from the mean position. The time period of oscillation is:
During simple harmonic motion of a body, the energy at the extreme position is:
Choose the correct pair from the following :
Which one of the following is not a criterion of genetic material?
Number of base pairs in human chromosomes are:
Which of the following organisms are known as chief producers in the oceans?
The period of oscillation of a mass $M$ suspended from a spring of negligible mass is $T$. If along with it another mass $M$ is also suspended, the period of oscillation will now be:
The refracting angle of a prism is $A$, and refractive index of the material of the prism is $\cot(A/2)$. The angle of minimum deviation is:
Given below are two statements: Statement I: In the lac operon, the z gene codes beta-galactosidase which is primarily responsible for the hydrolysis of lactose into galactose and glucose. Statement II: In addition to lactose, glucose or galactose can also induce lac operon. In the light of the above statements choose the correct answer from the options given below:
Complete the flow chart on central dogma:
Given below are two statements: Statement I: The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. Statement II: A transcription unit in DNA is defined primarily by the three regions in the DNA i.e. a promoter, the structural gene and a terminator. In the light of the above statements, choose the correct answer from the options given below:
Winged pollen grains are present in
The restoring force of a spring, with a block attached to the free end of the spring, is represented by:
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The potential (V) at any axial point, at 2 m distance (r) from the centre of the dipole of dipole moment vector P of magnitude, $4\times10^{-6}$ C m, is $\pm 9\times10^3$ V. (Take $1/4\pi\varepsilon_0 = 9\times10^9$ SI units) Reason (R): $V = \pm \frac{2P}{4\pi\varepsilon_0 r^2}$, where r is the distance of any axial point situated at 2 m from the centre of the dipole. In the light of the above statements, choose the correct answer from the options given below: