The macronucleus is usually dorsal, elliptical, and cleft, with one micronucleus attached.
The macronucleus is spherical and has one micronucleus attached.
A round macronucleus with one micronucleus is in the anterior half of the body.
The macronucleus is usually single, elliptical in form, and centrally placed; one micronucleus.
Both the small nucleus (micronucleus) and the large nucleus (macronucleus) divide at each division of the body.
The macronucleus is spherical, centrally placed, and with one micronucleus closely applied.
In the latter case it is often called the paranucleus or micronucleus.
The macronucleus is central, spherical in form, and bears a single minute micronucleus.
micronucleus mi·cro·nu·cle·us (mī'krō-nōō'klē-əs, -nyōō'-)
A minute nucleus.
The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.