alleryStart learning →Which pair of subunits makes up a mammalian ribosome?
A30S with 50S
B40S with 60S
C20S with 60S
D40S with 40S
Answer & Solution
Correct answer: B. 40S with 60S
1. A mammalian ribosome has a small 40S subunit and a large 60S subunit.
2. The assembled particle is described as 80S.
3. The 30S and 50S pair is the bacterial arrangement, which totals 70S.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 15 "Genes and Proteins", section 15.5 Ribosomes and Protein Synthesis_
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