In a 3-celled pollen, the generative cell has already divided and formed 2male gametes. Hence, it will not divide again in the pollen tube. Since ina 2-celled pollen, the generative cell has not divided, it divides in the pollen tube.
In a 3-celled pollen, the generative cell has already divided and formed 2 male gametes. Hence, it will not divide again in the pollen tube. As the generative cell has not divided in a 2-celled pollen, it divides in the pollen tube.
Fungi are not classified in plant kingdom because their cell wall is different from plant cell and is made up of chitin. They also lack chlorophyll and hence cannot do...
The correct development sequence is as follows:
Sporogenous tissue – pollen mother cell – microspore tetrad – Pollen grain – male gamete
During the development of microsporangium, each cell of the sporogenous...
Copper is a much better conductor of heat than steel. Also, copper does not react with water at all but steel (an alloy of iron) reacts with steam. So, copper is used to...
(a) increases
Explanation:
During the above rotation water will move away from the axis of rotation. And the moment of inertia is directly proportional to the square of the distance of the mass from...
The correct answer is (b) 10√2 cm
Explanation:
When the tube is inclined, the vertical rise remains the same. So the water in the inclined tube rises to 10*sec45° =10√2 cm.
(a) increases
Explanation:
During the above rotation water will move away from the axis of rotation. And the moment of inertia is directly proportional to the square of the distance of the...
