A tripeptide is composed equally of L - valine, L - tyrosine and L - alanine (one molecule of each).
How many isomeric tripeptides of this kind may exist ___________.

Explanation

To determine the number of isomeric tripeptides that can be formed from one molecule each of L-valine, L-tyrosine, and L-alanine, we can follow these steps:

### Step 1: Identify the components
We have three amino acids:
- L-Valine (Val)
- L-Tyrosine (Tyr)
- L-Alanine (Ala)

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