In a surprising turn of events, an international team of scientists has found that lead-208 (208 Pb), the heaviest known "doubly magic" nucleus, exhibits unexpected shape characteristics that ...

the spindle fibers are referred to as the meiotic spindle. At the beginning of nuclear division, two wheel-shaped protein structures called centrioles position themselves at opposite ends of the ...

The experimental signature is interpreted as the protons and neutrons inside the atomic nucleus vibrating in a coordinated pattern, resulting in a pulsing, asymmetric, pear-shaped structure.

The resting nucleus consists of delicate chromatin threads ... As the daughter chromosomes move toward the poles they become V-shaped, with the apex of the V attached to the spindle. Their double ...

Each circular shape is a cell. RCC1 appears to be located near the nucleus and chromosomes ... both protein import during interphase and spindle attachment to the chromosomes during M-phase?