March Gallery

Formula 1 1994: Brazilian GP

AUToDROMO JOSe CARLOS PACE, BRAZIL - MARCH 27: Michael Schumacher during the Brazilian GP at Autodromo Jose Carlos Pace on Sunday March 27, 1994 in Sao Paulo, Brazil. (Photo by Ercole Colombo / Studio Colombo)

© Motorsport Images

F1, Formula 1, Gp, Portrait

LM of metaphase mitosis in a triton (sea slug) egg

Metaphase cell division. Light micrograph of cell division (mitosis) in a triton (naked sea slug/ nudibranch) egg. This is the metaphase stage in mitosis. The spindles (blue horizontal threads) connecting the centrioles (dark blue ovals at centre left and right) are fully formed. The chromosomes (dark blue threads of DNA) have lined up on the spindles (centre) prior to division between the two potential daughter cells. Mitosis is a 5 stage process of cell division; it has two functions: replicated genetic material is distributed between the two potential cells, and the cell is cleaved in two. Magnification: x200 at 5x7cm size. x100 at 35mm

© CNRI/SCIENCE PHOTO LIBRARY