Which of following mechanisms does not promotes cross pollination:
Self-incompatibility is a mechanism in plants that prevents self-pollination or mating between closely related individuals. It promotes cross-pollination by inhibiting the fertilization of ovules with pollen from the same plant or a closely related plant. This mechanism ensures genetic diversity and reduces the likelihood of inbreeding.
Which one of the following is called a red planet?
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
An electric dipole of length 10 cm, when placed with its axis making an angle of 30° with a uniform electric field, experiences a torque of 2√...
A rocket with a lift-off mass 10,000 kg is blasted upwards with an initial acceleration of 5.0 m s–2. Calculate the initial thrust (force) ...
Clear nights are colder than cloudy nights because of –
A pulse of light duration 10-5 s is absorbed fully by a little object initially at rest. If the power of this pulse is 45 × 10-3...
The energy that can harness heat stored below the earth's surface is known as –
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
In MRI machine, which one of the following is used?
A charged particle oscillates about its mean equilibrium position with a frequency of 105 Hz. What is the frequency of the electromagnetic wa...
