(a)Differentiate between intranuclear and extranuclear mitosis.In which organisms such type occur?
(b)Give example where one would find free nuclear division without the division of cytoplasm,resulting in multinucleate organisms.

Answer

(a)In unicellular organisms(e.g.,amoeba and yeast)mitotic events usually occur within the nuclear envelope,Which remains intact, and the nucleus divides by furoowing along with the cytoplasm.such a mitosis is called intranuclear mitosis.
In multicellular organisms(r.g.,man),the nuclear envelope breaks down and the termed extranuclear mitosis.
(b)Examples:Opalina(a protozoan)and fungi.