Question

Which one of the following does the Protista genome have?
A) Membrane bound nucleoproteins embedded in cytoplasm.
B) Free nucleic acid aggregates.
C) Gene containing nucleoproteins condensed together in loose mass.
D) Nucleoprotein is in direct contact with cell substance

Answer 1

Hint: Protists are a diverse collection of organisms. They are primarily microscopic, unicellular or single celled. The cells of the protists are highly organized with nucleus and specialized cellular machinery called organelles.

Complete answer:
Now let us analyze all the options one by one and find the correct answer.
Option A: Protists are eukaryotes. The only difference between a eukaryote and a prokaryote is that in eukaryotes, the nucleoproteins are membrane bound and it is not found freely in the cytoplasm. So, option A is correct.
Option B: In protists, the nucleic acid aggregates do not lie freely in the cytoplasm. So, option B is incorrect.
Option C: In protists, genes containing nucleoproteins are condensed together in cytoplasm, that is they are embedded in the cytoplasm. They are not condensed together in loose mass in protists. So, option C is incorrect.
Option D: In protists, nucleoproteins are membrane bounded or cell bounded. They are not in direct contact with cell organelles or the cell substance. So, option D is incorrect.

Thus, the correct answer is option (A) Membrane bound nucleoproteins embedded in cytoplasm.

Note: Protista characteristics are extremely broad with exceptional variation among individual species of protists. All protists are eukaryotes, which means they contain a nucleus, and have sorted organelles like plastids and mitochondria. Most protists are unicellular although some are simple multicellular organisms.