What is the small ribosomal subunit of a Eukaryote?

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Multiple Choice

What is the small ribosomal subunit of a Eukaryote?

Explanation:
In eukaryotes, the ribosome is made of two subunits: a small 40S and a large 60S, which together form the functional 80S ribosome. The number refers to sedimentation rate in Svedberg units, not exact mass. The small subunit in eukaryotes is 40S, which contains the 18S rRNA and is responsible for mRNA binding and decoding during initiation. That’s why 40S is the correct choice for the small subunit in a eukaryote. The remaining options correspond to other subunits: 60S is the large subunit in eukaryotes, while 50S and 30S are the large and small subunits, respectively, in prokaryotes.

In eukaryotes, the ribosome is made of two subunits: a small 40S and a large 60S, which together form the functional 80S ribosome. The number refers to sedimentation rate in Svedberg units, not exact mass. The small subunit in eukaryotes is 40S, which contains the 18S rRNA and is responsible for mRNA binding and decoding during initiation. That’s why 40S is the correct choice for the small subunit in a eukaryote. The remaining options correspond to other subunits: 60S is the large subunit in eukaryotes, while 50S and 30S are the large and small subunits, respectively, in prokaryotes.

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