NÚCLEO da Célula

http://images.google.com.br/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Nucleus_ER.png/300px-Nucleus_ER.png&imgrefurl=http://pt.wikipedia.org/wiki/N%25C3%25BAcleo_celular&usg=__pTCWGImD8oh9AtLkTuLwYjwipzw=&h=338&w=300&sz=117&hl=pt-BR&start=13&um=1&tbnid=ew8ziBsakjnApM:&tbnh=119&tbnw=106&prev=/images%3Fq%3Dnucleo%2Bda%2Bcelula%26hl%3Dpt-BR%26rlz%3D1R2GGLL_pt-BR%26sa%3DN%26um%3D1


http://www.colegiosaofrancisco.com.br/alfa/citologia/imagens/nucleo-celular.jpg