In the Biology Lab,you Observe Three Different Animal Cells Under

Multiple Choice

In the biology lab,you observe three different animal cells under a microscope.In one cell,the nucleus is uniformly filled,with no distinct chromosome structure visible.In another,you see the nucleus with two nucleolus areas of more compact chromatin.A third cell is in mitosis,and distinct chromosome strands are visible.The value in packaging DNA in tighter forms of chromatin is for

A) regulation and protection of the DNA during transcription.
B) Both answers regarding DNA mobility, protection and regulation in mitosis and transcription are correct.
C) prevention of ligase enzyme action during replication.
D) mobility and protection of the DNA molecule during mitosis.
E) insuring that sister chromatids will be attached prior to replication.