Adjective modifier

• compound: Similarly liver disease is rare among C282Y/H63D compound heterozygotes ( 1 % ; upper 95 % CI = 3.5 % ).

Modifies a noun

• advantage: Blood phenylalanine levels are elevated, but otherwise these heterozygotes show no symptoms and may even enjoy a heterozygote advantage.

• carrier: In the explanations that follow, an intermediate gray color is used to assist in understanding the effect of a heterozygote carrier.

• frequency: This prospective study was designed to assess the TSD heterozygote frequency among people with French Canadian background living in Massachusetts.