Question

Nuclear membrane is absent in
(A) Chlamydomonas
(B) Nostoc
(C) Volvox
(D) Chlorella

Answer 1

(B) Nostoc is the right option.

Chlamydomonas, Volvox and Chlorella are unicellular eukaryotic organisms which have a nuclear membrane.

Nostoc is a prokaryotic cell so it lacks membrane-bound organelles and well organized nucleus.  So, the nuclear envelope or membrane is also absent in such type of cells.

Hope it helps!

#MVB

Answer 2

Nuclear membrane is absent in

(A) Chlamydomonas

(B) Nostoc

(C) Volvox

(D) Chlorella

Nuclear membrane is absent in Nostoc.