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Q. In eukaryotic cell, the type of ribosome is

Chhattisgarh PMTChhattisgarh PMT 2005

Solution:

Ribosomes are the smallest granules, found in the cytoplasm, contain ribosomal RNA (rRNA) and many ribosomal proteins. On the basis of sedimentation coefficient they are of ret types-
(i) $70S$ ribosomes-They are smaller in size and their sedimentation coefficient is (found in bacteria and chloroplast).
(ii) $80S$ ribosomes-Their sedimentation coefficient is $80S$ and are found in higher plants and animals or eukaryotic cells In $80S$ ribosome, the larger subunit is $60S$ and smaller one $40S$.