Multiple choice general knowledge science & technology

The number of naturally occurring amino acids found in proteins is

  1. 12

  2. 25

  3. 15

  4. 20
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are 20 standard amino acids that are genetically encoded and incorporated into proteins during translation. These are the naturally occurring building blocks of proteins in all living organisms. Each has a distinct side chain that determines its chemical properties. The numbers 12, 15, and 25 are incorrect counts.

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