Among the many marvels of life is the cell's ability to divide and thus enable organisms to grow and renew themselves. For this, the cell must duplicate its DNA—its genome—and segregate it equally ...

As the cell proceeds through the stages of cell division (from left to right: interphase, prometaphase, metaphase, and anaphase), chromosomes become progressively more compact through a combination of ...

For a living cell to divide successfully, each daughter cell must inherit the correct genetic material. In eukaryotes, segregation of duplicated chromosomes is performed by the mitotic spindle, a ...

Inside each human cell, about 2 meters (6.6 feet) of genomic DNA must be accurately copied and equally transmitted to two daughter cells during cell division. To achieve this, the copied DNA is ...

Structure of Ndc80 complex bound to microtubule. Ndc80 complex is the major microtubule3binding module at the kinetochore. Green: α-tubulin, light-blue:β-tubulin, dark blue: HEC1 (a4subunit of the ...

Small, cancer-associated DNA circles "hitchhike" on chromosomes during cell division to spread efficiently to daughter cells by co-opting a process used to maintain cellular identity through ...

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from ...

This video explains the stages of mitosis, contrasts them with meiosis and the creation of haploid gametes, and concludes by ...

When plants end up with the wrong number of chromosomes, the consequences are usually dire. Cells starved of, or overloaded ...

Repetitive DNA and the D1 protein help matching fruit fly chromosomes recognize one another before eggs form.