Biology The Unit of Life ( Cell - The Unit of Life ) Statement Based Questions Single Correct MCQ
Published on: August 12, 2026

Choose wrong statement for ribosome.

(i) Ribosomes first observed under the electron microscope by George Palade.

(ii) They are composed and are surrounded by membrane.

(iii) The eukaryotic ribosomes are 80S while the prokaryotic ribosomes are 70S.

(iv) In prokaryotes, ribosomes are associated with the plasma membrane of the cell.

(v) Several ribosomes may attach to a single mRNA in eukaryotes and form a chain called polyribosomes or polysome.

A
(iii), (iv) and (v)
B
(ii), (iv) and (v)
C
(ii) and (v)
D
Only (iv)

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