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Q.

Choose the incorrect statements.

A. All prokaryotic cells have cell wall.

B. All prokaryotic cells have chromatophores

C. All prokaryotic cells have gas vacuoles.

D. All prokaryotic cells have 30S subunit of ribosomes.

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a

B and D only

b

A and D only

c

A, B, C and D

d

A, B and C only

answer is C.

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Detailed Solution

A. Most of the prokaryotic cells have cell wall. Mycoplasmas do not have cell wall.

B. Only photosynthetic prokaryotic cells have chromatophores

C. Only photosynthetic and aquatic  prokaryotic cells have gas vacuoles.

D. All prokaryotic cells have 30S subunit of its 70S ribosomes.

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