Question

How does plant chromosomes gets separated without centriole? How spindle fibres are made in plant cell?

Answer 1

Animal cells under go cell division in two phases karyo-kinesis and cyto-kinesis. During cell division (anaphase) the chromosomes are pulled away by structures called microtubule's which are formed by centrioles , just before this the centrioles line up on two opposite sides of the cell . in plant cells microtubules are made by the Golgi bodies. Animal cells are much evolved than plant cells that's why they have centrioles . Spindle formation is very much different in plant cells than in animal cells due to the absence of centrioles .

During mitosis, the spindle fibers are called the mitotic spindle. Meanwhile, during meiosis, the spindle fibers are referred to as the meiotic spindle. At the beginning of nuclear division, two wheel-shaped protein structures called centrioles position themselves at opposite ends of the cell forming cell poles