Knowing someone has an increased chance to develop a disease allows you to monitor that carefully, so that if that person does indeed develop the disease, you can treat it early, or delay the onset.
Vaccination
Antibodies
Antibodies are biomolecules that have a Y-shaped structure. This Y shape allows antibodies to bind to specific antigens, recognizing and neutralizing them as part of the immune response.
A vaccine typically contains weakened or inactivated disease-causing viruses or bacteria. This formulation allows the immune system to recognize and develop protection against the specific pathogen without causing the full-blown disease.
This allows rapid and sensitive detection of antibodies that are markers of such diseases, as infectious mononucleosis and rheumatoid arthritis
drying and fermentation
aids is a disease caused by many organisms
photosynthesis
A diverse array of antibodies can be generated against a single antigen through a process called somatic hypermutation. This process allows B cells to produce a wide range of antibodies with different binding affinities to the antigen, increasing the chances of finding an effective antibody to neutralize the antigen.
To put it in the simplest terms, your body sees the fertilized egg as a parasite or an infection of microorganisms, because it has the combined DNA structure from both mother and father, so the body doesn't recognize it. Antibodies, cells that defend the body from foreign invaders, would destroy the zygote, or fertilized egg, if the uterus didn't develop a mucous lining to shield and protect it. This allows the zygote to stay implanted in the uterus and develop full-term into the baby that is born.
Tubular kidney disease-- Disease of the kidney that affect the tubules, the part of the kidney that allows certain substances to be reabsorbed back into the blood