Ribosomes are attached to the endoplasmic reticulum through glycoproteins known as Ribophorin I and II. Which subunit of ribosome get attached to the endoplasmic reticulum?

Large subunit

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Small subunit

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tRNA

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mRNA

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Solution

The correct option is D Large subunit
The ribosomes in the eukaryotic cell are composed of the 80S type, with two subunits 60S and 40S. The ribosomes are attached to the surface of the endoplasmic reticulum with the help of glycoproteins, ribophorin I and II. The larger subunit 60S attaches with these glycoproteins to form an attachment with the ER. Thus, the correct answer is option A.

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