double, female, obligate, such, normal, structural, male, most, obligatory, asymptomatic, compound, simple, presumed, familial, complex, unaffected, only, sickle, cystic, single, affected, mutant, cell, permanent, deficient, diploid, triple, healthy, reciprocal, fewer, lethal, possible, mixed, phenylketonuric, symptomatic, corresponding, intermediate, multiple, selfed, robertsonian, thalassaemia, partial, balanced, recessive, aberrant, antitrypsin, dominant, potential, phosphate, fragile, chromosomal, presumptive, paracentric, autosomal, definite, unrelated, rare, type, genetic, superior, locus, viable, observed, occasional, terminal, least, putative, homozygous, linked, identical, pericentric, resistant, karyotypic, advantageous, interchange, likely, apparent, random, pregnant, sterile