Respiration and Cell Wall Synthesis in Onion Root Tips and the effect of DNase I and NaCl on Thymus Calf DNA packaging
نویسندگان
چکیده
There are three zones within the onion root tip, the meristematic zone, the zone of elongation, and the zone of maturation, all of which represent a different zone of the cells' lives, with cell division occurring actively in the meristematic zone. When a cell is ready to divide, its DNA becomes visible due to higher order structuring that starts with DNA binding to histones. Through tetrazolium and peroxidase substrate, it was observed that heavy cellular respiration and cell wall synthesis occurs in the meristematic zone. Through treating extracted nuclei with water, DNase, or NaCl, it was seen that histones play an integral role in the packaging of DNA.
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