The chromatin reticulum is enclosed within:

It consists of nucleoplasm surrounded by a nuclear membrane. The nuclear membrance is perforated and the pores are called nuclear pores or nucleopores. The nuclear membrance is a double unit membrane enclosing a perinuclear space. The nucleoplasm possesses chromatin reticulum and 1 or 2 darkly stained bodies called nucleoli (sing-nucleolus). The chromatin reticulum is made up of DNA which is the genetic material and associated histone proteins. The nucleoplasm consists of more than 90% proteins, RNA and phospholipids.