माइटोटिक उपकरण क्या है? इसके संरचना और कोशिका विभाजन के दौरान इसकी भूमिका का वर्णन करें। (What is mitotic apparatus? Describe its structure and its role during cell division.) (UPSC 2024,15 Marks,)

What is mitotic apparatus? Describe its structure and its role during cell division.