Eukaryotes have three nuclear RNA polymerases (I, II, and III), each with distinct roles in transcribing different types of RNA. Mitochondria and chloroplasts also have their own RNA polymerases. Thus, both statements are correct.
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 :