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.
Avoid in people with asthma. Avoid in people with a known allergy or sensitivity to glucosamine sulfate or its parts. Glucosamine comes from shrimp, crab, and other shellfish, and should be avoided if allergic or sensitive to shellfish or iodine.
In the past, researchers have found that some chondroitin supplements did not contain the amount of chondroitin stated on the label. The same was true of some combination glucosamine and chondroitin supplements. Ask your doctor to recommend a brand, or choose a brand you trust.