1) Heritable 2) Inheritable 
Of nematodes: Producing offspring of only one sex. 
• (a.) Of or pertaining to monogenesis. • (a.) Producing only one kind of germs, or young; developing only in one way.
Controlled by or associated with a single gene.
<genetics> Controlled by or associated with a single gene. ... Origin: Gr. Gennan = to produce ... (09 Oct 1997) ... 
(mon″o-jen´ik) pertaining to or influenced by a single gene.
Normally relating to resistance or controlled by a single gene.
Mon`o·gen'ic adjective 1. (Biol.) Of or pertaining to monogenesis. 2. (Zoology) Producing only one kind of germs, or young; developing only in one way. 
Type: Term Pronunciation: mon′ō-jen′ik Definitions: 1. Relating to a hereditary disease or syndrome, or to an inherited characteristic, controlled by alleles at a single genetic locus.
Monogenic: Pertaining to one gene. As opposed to polygenic.
[adj] - (genetics) of or relating to an inheritable character that is controlled by a single pair of genes
adjective of or relating to an inheritable character that is controlled by a single pair of genes
bearing either only males or only females. · pertaining to a character controlled by one pair of genes.