PATHOLOGY

Detailed explanation-1: -Cells spend most of their time in a stage called interphase. During this phase, the nuclear envelope surrounds the nucleus. There may be one or more nucleoli (dark, condensed regions) visible within the nucleus.

Detailed explanation-2: -During most of the cell cycle, interphase, the chromosomes are somewhat less condensed and are not visible as individual objects under the light microscope. However during cell division, mitosis, the chromosomes become highly condensed and are then visible as dark distinct bodies within the nuclei of cells.

Detailed explanation-3: -In interphase they will look like ‘normal’ plant cells, with a dark and well defined nucleus . Remember that although interphase is the phase cells spend the most time in, they are not inactive. Cells will be copying their DNA in preparation for cell division (referred to as Synthesis or S) .

Detailed explanation-4: -A typical cell spends the majority of its time in interphase, which is the phase of the cell cycle. The metabolic or “everyday life” phase of the cell is known as the interphase, during which the cell develops, replicates its DNA in order to be ready for mitosis, and does other “typical” cell operations.

Detailed explanation-5: -During interphase, individual chromosomes are not visible, and the chromatin appears diffuse and unorganized. Recent research suggests, however, that this is an oversimplification and that chromosomes may actually occupy specific territories within the nucleus (Cremer & Cremer, 2001).