a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z
junctional diversity
Variability in immunoglobulins caused by differences in the exact crossover point during V-J, V-D, and D-J joining.
kappa particle
Bacteria-like particle that gives a Paramecium the killer phenotype.
karyokinesis
The process of nuclear division. See cytokinesis.
karyotype
The chromosome complement of a cell. The entire chromosome complement of an individual or cell, as seen during mitotic metaphase. See idiogram.
kin selection
The mode of natural selection that acts on an individual's inclusive fitness.
kinetochore
The chromosomal attachment point for the spindle fibers located within the centromeres.
Klinefelter syndrome
An abnormal human male phenotype involving an extra X chromosome (XXY).