In some cases, only one of the two parental genes is expressed outwardly in the offspring, as when horses inherit one coat-color gene from the sire and a different coat-color gene from the dam.
(only one of the two parental genes; is expressed outwardly; as when horses inherit one coat-color gene from the sire and a different coat-color gene from the dam; L:In some cases) (horses; inherit; one coat-color gene; from the sire and a different coat-color gene from the dam)
only one of the two parental genes horses
is expressed outwardly inherit
as when horses inherit one coat-color gene from the sire and a different coat-color gene from the dam L:In some cases
one coat-color gene from the sire and a different coat-color gene from the dam