amino acids form a chain called a polypeptide chain and form a protein
A gene is the string of triplets that specifies a particular protein.
A polypeptide chain that eventually is formed into a protein
protein
Linearly, as in a string of Pearls.
amino acids amino acids
How long is a piece of string?
LONG
String
A piece of string 5 k long is 5 kilometers, or 3.1 miles, long
Long
Only if it happens to be a 2 foot long piece of string.
When the long string of a piano produces pitch it is called treble.