Talk with your caregiver about the best time to wean your baby. 1  Introducing solid foods: Weaning should begin when your baby is about 6 months old.  Weaning from breast milk: Your baby needs nutrients from breast milk until he is at least 12 months old.
Enzyme-linked secondary antibodies are applied as detection antibodies that also bind specifically to the antibody's Fc region (nonspecific). The plate is washed to remove the unbound antibody-enzyme conjugates. A chemical is added to be converted by the enzyme into a color or fluorescent or electrochemical signal.
Resource type: this resource is a lesson. In this lesson, the three-dimensional structure of proteins will be discussed: the primary structure of polypeptides, secondary structures found in proteins (Î±-helix, Î²-sheet), and the tertiary structure. The concept of an enzyme active site will be introduced. Aims. By the end of this lesson, you should. 1  be familiar with the main features of protein structure.  understand the concept of an enzyme active site.