What factors allow a pool of 20 amino acids to produce thousands of unique proteins?

What factors allow a pool of 20 amino acids to produce thousands of unique proteins? (select the 3 that


The possible answers are:
A. Variation in length of the amino acid backbone
B. Each protein is encoded by a distinct gene
C. Variations in the type of peptide bond
D. Variations in the glycosidic linkage
E. Variation in tertiary structure
F. Variations in which amino acids are used

The correct answers are A,E and F
There are only 20 amino acids that make all of the proteins in our bodies. However, there are options for protein variation are almost unlimited.
Firstly, you can vary the number of different amino acid that you use to make a protein.
Secondly, you can also vary the length of the amino acid chain.
And thirdly, when an amino acid chain is formed different parts of the chain interact with each other, bonding chemically, forming different 3-dimensional structures of the protein.
All of this contributes to the vast variation in proteins.

can you give detail


Amino acids are a simple organic compound containing both a carboxy and a amino... and the unique properties are that each amino acids has unique characteristics arising from the size, shape, solubility, and ionization.
The "R" group is the variable in an amino acid
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain 

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