As viewed from a human perspective, nature has done some ingenious engineering to overcome some of the obstacles it has faced. Take the evolution of sex, for instance. To make the move from ...

The five phases of mitosis and cell division tightly coordinate the movements of hundreds of proteins. How did early biologists unravel this complex dance of chromosomes? The most obvious ...

Circulatory system Transport substances. Defend the body. Regulate temperature. Excretory system Remove waste products and unwanted substances. Regulate the water content of the body. Muscular ...

About 100 cells divide every second in our body. A key protein in cell division is a protein kinase termed Plk1, because it activates other proteins involved in this process. Plk1 is also ...

Mitosis is the complex process in which duplicated chromosomes are condensed, segregated with the help of the mitotic spindle, and packaged in to daughter cell nuclei. Mitosis occurs in five ...

an organism grows an organism becomes damaged and needs to produce new cells for repair organisms like bacteria reproduce asexually It is essential that any new cells produced contain genetic ...

As viewed from a human perspective, nature has done some ingenious engineering to overcome some of the obstacles it has faced. Take the evolution of sex, for instance. To make the move from ...