The addition of PHA to cultured cells following treatment with uv-inactivated Sendai virus enhanced the production of homo- and heterokaryons as well as interspecific cell hybridization from lymphoid cell lines.
Methylandrostenediol in adequate doses has a potent male-inducing action on fry of genetic females (XX) of the medaka, Oryzias latipes. Higher doses, however, induce neuters (sexless) and result in reduction in frequency of the anal fin-rays.