Q. In nucleoplasm, a conspicuous body of spherical shape attached to a particular chromosome on a definite position is called

 1960  226 AIIMSAIIMS 1998Cell : The Unit of Life Report Error

Solution:

Nucleolus is a naked, round or slightly irregular structure which is attached to the chromatin at a specific region called nucleolar organiser region. Plasmids are additional rings of DNA in bacteria which can replicate independently. Karyolymph or nucleoplasm is a transparent, semifluid and colloidal substance which fills the nucleus.