Multiple choice

The number of RNA molecules in 60S subparticles of 80S ribosomes are

  1. 5

  2. 4

  3. 3

  4. 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Eukaryotic 80S ribosomes consist of a 60S large subunit and a 40S small subunit. The 60S subunit contains three rRNA molecules: 28S, 5.8S, and 5S, while the 40S subunit contains only one 18S rRNA. This is different from prokaryotic 70S ribosomes which have only 2 rRNA molecules total.

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