The larger subunit of a ribosome is composed | vedclass

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(B) In prokaryotes (e.g.,$E. coli$),the $70S$ ribosome consists of a $50S$ large subunit and a $30S$ small subunit. The $50S$ large subunit contains t

Vedclass · Accepted Answer

Two

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(B) In prokaryotes (e.g.,$E. coli$),the $70S$ ribosome consists of a $50S$ large subunit and a $30S$ small subunit. The $50S$ large subunit contains two types of $rRNA$ molecules: $23S$ $rRNA$ and $5S$ $rRNA$. In eukaryotes,the $80S$ ribosome consists of a $60S$ large subunit and a $40S$ small subunit. The $60S$ large subunit contains three types of $rRNA$ molecules: $28S$ $rRNA$,$5.8S$ $rRNA$,and $5S$ $rRNA$. Since the question asks for the number of $rRNA$ molecules in the larger subunit generally,and considering the prokaryotic model as the standard reference in many contexts,the answer is two. However,given the variation,the most commonly cited answer in the context of the $50S$ subunit is two.

The larger subunit of a ribosome is composed of how many $rRNA$ molecules?

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