Because the centrosomes are located outside the nucleus in animal cells, the microtubules of the developing spindle do not have access to the chromosomes until the nuclear membrane breaks apart.

The peas represent chloroplasts and the grape represents the nucleus. Plant cells have the same four components in animal cells but have these extra three as well: Cell wall close cell wallThe ...

Smaller nucleoli slow aging, acting as a "mortality timer," while larger nucleoli lead to cell death by destabilizing rDNA. The secret to cellular youth may lie in maintaining a small nucleolus—a ...

Scientists have uncovered new details about the mechanism behind cancer progression. Researchers explored the influence the mechanical stiffening of the tumor cell's environment may have on the ...

Cells are composed of cytoplasm containing various organelles, such as the nucleus, in which the DNA is stored, or mitochondria, which participate in energy production. Animal Cells are limited by ...

This solution is called meiosis. Mitosis describes the process by which the nucleus of a cell divides to create two new nuclei, each containing an identical copy of DNA. (Cytokinesis describes the ...

A cell protein previously believed only to provide a scaffolding for DNA has also been shown to directly influence DNA transcription into RNA – the first step of the process by which an organism's ...