Why are onion root tips a good choice for viewing cells in different stages of the cell cycle?

• Onion root tips are known to have large chromosomes and low chromosome number, which are very visible when stained.

Explanation:

Many plant root tips are best candidates for studying cell cycle stages. There are various factors why root tips are ideal for such study and one general reason for all plant root tips is the fact that they are inexpensive to obtain and root meristem have a large number of rapidly dividing cells. There are other plants which combine the advantage of being inexpensive and easily accessible and possessing large and low number of chromosomes which can easily be studied, among them is onion root tips.