hyphenated word was joined on the previous page because of the intervening image.— Ineuw talk 22:20, 24 November 2013 (UTC) (Wikisource contributor note)
by use of the Mendelian theory. For example, two or more hereditary factors may be necessary for the production of an actual tangible character. If factors A and B must be present for its production, then a plant carrying only factor A and another carrying only
Fig. 6. Mendelian Segregation in Maize, a and b, the two parents, starchy and sweet maize; c, the first hybrid generation showing dominance of starchiness; d, the second hybrid generation showing segregation with the ratio of three starchy to one wrinkled seed. Lower row daughters of d. e, f and g, results of planting starchy seeds. One ear out of three is pure starchy, h, result of planting sweet seeds. Ear is pure sweet.
factor B do not possess the character. But let the two plants be crossed and the character appears. There are two white varieties of sweet peas; each, however, contains one of the two factors necessary for the production
