â¢ RECESSIVE ALLELE (noun). The noun RECESSIVE ALLELE has 1 sense: 1. an allele that produces its characteristic phenotype only when its paired allele is identical. Familiarity information: RECESSIVE ALLELE used as a noun is very rare.
Chondroitin is a molecule that occurs naturally in the body. It is a major component of cartilage, the tough, connective tissue that cushions the joints. Commercial chondroitin comes from natural sources, such as shark and bovine cartilage, or synthetic production. Chondroitin helps keep cartilage healthy by absorbing fluid (particularly water) into the connective tissue.
Glucosamine is a compound that is naturally made in humans. It is involved in the creation of molecules that form cartilage. Evidence supports the use of glucosamine sulfate in the treatment of knee osteoarthritis. It is believed that the sulfate portion may help strengthen cartilage. If this is confirmed, it would mean that the glucosamine sulfate form is more effective than glucosamine without sulfate. Glucosamine is often taken together with chondroitin, which comes from cartilage. The use of integrative therapies like glucosamine is often seen in people with osteoarthritis.