micronuclearadj.

1888 Jrnl. Royal Microsc. Soc. 753 The micronuclei, of which one is simple in the macrogamete and double in the microgamete, now grow, and four micronuclear corpuscles are produced in the former and eight in the latter.

1905 Brit. Med. Jrnl. 25 Feb. 441 A special ingrowth of micronuclear cells..gave rise to the mesamœboid (mesoblastic) cells.

1953 R. Wichterman Biol. of Paramecium ix. 273/1 The four micronuclear products of the first pregamic division enter quickly upon the second pregamic division without a resting stage between them..to produce eight micronuclear products.

1988 Nature 1 Sept. 24/2 One is the difficulty associated with cell culture in axenic media (Paramecium eats bacteria in nature); another is the dearth of suitable (micronuclear) mutations for genetic analysis.

1995 Proc. National Acad. Sci. U.S.A. 92 8715 Sex is limited to the temporary conjugal union of two cells for purposes of recombination and rejuvenation—i.e., micronuclear exchange and macronuclear replacement.