Question

All proteins are made up of the some amino
acids; then how proteins found human
beings and animals may be different from these of other?​

Answer 1

Answer:

Human proteins are made up of 20 amino acids.  Some amino acids are not synthesized in human body and are required externally. These are called essential amino acids.  These can be obtained from plants and animals.

Animals have all the amino acids that are required for their development  and humans as well.

Proteins are necessary in growth and metabollism in animals and humans.

Proteins in higher organisms are linked to DNA.

In animals like cow, goat milk proteins are higher whereas humans lack that.