If measured from beginning to end, the DNA in our cells is too long to fit into the cell's nucleus, explaining why it must be ...

From spaghetti to sausagesOur DNA is constantly being packed and unpacked. And there is a good reason for this: depending on ...

A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA ...

A cell’s complete genetic blueprint, or genome, is densely packed into chromosomes, condensing meters of DNA into a minuscule cellular vessel only micrometers wide (SN: 8/24/15).

A human cell carries in its nucleus two meters of spiraling DNA, split up among the 46 slender, double-helical molecules that are its chromosomes. Most of the time, that DNA looks like a tangled ball ...

All cells have damage control mechanisms that can sense nicks and breaks in chromosomes -- DNA damage -- and repair them. "We think acetylation somehow marks the newly copied DNA so the cell knows ...

Earlier efforts to build human artificial chromosomes focused on these structures, extracting DNA letters that could express proteins inside human cells to anchor the chromosomes. However, these DNA ...

For this, the cell must duplicate its DNA -- its genome -- and segregate it equally into two new daughter cells. To prepare the 46 chromosomes of a human cell for transport to the daughter cells ...

Now, scientists at the Salk Institute have discovered a new characteristic of human cell division that may help explain how our DNA is organized in the nucleus as cells reproduce. They found that ...

There are now four daughter cells — two from each of the two cells that entered meiosis II — and each daughter cell has half the normal number of chromosomes (Figure 7).

A human cell carries in its nucleus two meters of spiraling DNA, split up among the 46 slender, double-helical molecules that are its chromosomes. Most of the time, that DNA looks like a tangled ...