1.   Some antibodies attach to the biological locks on the zona pellucida and cause the locks to change shape so they will not accommodate the protein keys on sperm.

2.   That is similar to how enzymes work within living organisms and how antibodies attach onto their targets.

3.   The antibody attaches to the antigen and, like a chemical loudspeaker, summons other components of the immune system to come destroy the invader.

4.   Together the triple-looped heavy and light chains allow an antibody to attach to a foreign object like a virus and begin the process of destroying the enemy.

5.   When researchers later injected regular nicotine into the lab rats, the vaccine-induced antibodies attached to it and prevented it from passing into the brain.

6.   Antibodies attach themselves to specific targets, called receptors, on the surface of cells.

7.   If a person has had dengue, specific dengue antibodies attach to the outer envelope of the microbe virus.