Two dominant alleles aren't required for it to be expressed as the phenotype. however, two recessive alleles are necessary for the characteristic to be expressed as the phenotype
Archaean cell wall don't have peptidoglycan, yet they may have <em>, polysaccharides, glycoproteins, or protein-based cell dividers </em>
Bacterial cell walls are made of peptidoglycan (likewise called murein), which is produced using polysaccharide chains cross-connected by abnormal peptides containing D-amino acids
