Why is it difficult to observe individual chromosomes in the

Why is it difficult to observe individual chromosomes in the onion cell during interphase?

Solution

Cell cycle is the set of periodical events which facilitates increase the cell number. The events are Interphase & Division phase. Inter phase include G1, S & G2 PHASES. In inter phase all the DNA in association with Histones exist in the form of chromatin. Chromatin is a non condenced form and facilitates DNA replication in S phase of interphase. Once the Interphase over, then cell enter into Division phase. During this phase CHROMATIN STARTS CONDENSED AND FORM CHROMOSOMES. So in interphase we can only observe Chromation but not Chromosomes