blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B has B antigens with anti-A antibodies in the plasma. blood group O has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB has both A and B antigens, but no antibodies.
Length: 1  A polypeptide is a single linear chain of many amino acids, held together by amide bonds. 2  A protein is one or more polypeptide (more than about 50 amino acids long). 3  An oligopeptide consists of only a few amino acids (between two and twenty).onribosomal peptides are assembled by enzymes that are specific to each peptide, rather than by the ribosome. The most common non-ribosomal peptide is glutathione, which is a component of the antioxidant defenses of most aerobic organisms.
a polyp is an extra piece of tissue that grows inside your body colonic polyps grow in the large intestine or colon most polyps are not dangerous however some polyps may turn into cancer or already be cancer to be safe doctors remove polyps and test them polyps can be removed when a doctor examines the inside of the large intestine during a colonoscopy