Is there any term for a heterozygous phenotype of two codominant alleles which cannot be produced as a monohybrid cross, but " can " arise in a dihybrid cross with a third allele on each side?
22.
Dominant-codominant hickory trees grew about d . b . h . per year compared to for the moderate-growth species ( black cherry ) and for the faster-growing species ( yellow-poplar and red oak ).
23.
Trimble compared growth rates of various Appalachian hardwoods including a hickory species category Dominant-codominant hickory trees in d . b . h . on good oak sites grew slowly compared to northern red oak, yellow-poplar, black cherry ( " Prunus serotina " ), and sugar maple ( " Acer saccharum " ).
24.
It carries the antigenic determinants of the Duffy blood group system which consist of four codominant alleles FY * A and FY * B coding for the Fy-a and Fy-b antigens respectively, FY * X and FY * Fy, five phenotypes ( Fy-a, Fy-b, Fy-o, Fy-x and Fy-y ) and five antigens.
25.
Diversity of antigen presentation, mediated by MHC classes I and II, is attained in at least three ways : ( 1 ) an organism's MHC repertoire is polygenic ( via multiple, interacting genes ); ( 2 ) MHC expression is codominant ( from both sets of inherited alleles ); ( 3 ) MHC splicing which can combine peptides from different proteins, vastly increasing antigen diversity.
26.
Since 1925, commercial " Cucumis melo " ( cantaloup and muskmelon ) production has been engaged in a biological " arms race " against "'cucurbit powdery mildew "'( "'CPM "') caused by the fungus " Podosphaera xanthii ", with new cultivars of melons being developed for resistance to successively arising hybridization to propagate a recessive gene, " pm-S " in successive generations, and how this may affect other recessive and codominant genes for resistance to other races of " P . xanthii " " remains to be determined ".
