Examlex
The neural tube is formed from a sheet of primitive neural cells and is lined with stem cells.
Polypeptide Chains
Long chains of amino acids linked by peptide bonds, forming part of the structure of proteins.
Heme Group
A component of hemoglobin in red blood cells, responsible for the transport of oxygen.
Oxygen Molecules
Diatomic molecules consisting of two oxygen atoms, essential for respiration in living organisms.
Hematopoiesis
The process of forming new blood cells, including red blood cells, white blood cells, and platelets, in the body.
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