A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
The current passing through the battery in the given circuit, is:
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
The process of generating a genetically identical copy of a cell or an organism is known as cloning. Cloning takes place all the time in nature—for instance when a cell replicates itself asexually without any genetic alteration or recombination. Prokaryotic organisms (organisms short of a cell nucleus) like as bacteria create genetically identical duplicates of themselves and make use of binary fission or budding. In eukaryotic organisms (organisms holding a cell nucleus) like humans, all the cells that go through mitosis, such as skin cells and cells lining the gastrointestinal tract, are clones; the only special cases are gametes (eggs and sperm), which go thruogh meiosis and genetic recombination.
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