New research predicts the location of DNA sequences that can form structures besides the canonical double helix — non-B DNA — ...

During interphase, the cell's DNA is not condensed and is loosely distributed. A stain for heterochromatin (which indicates the position of chromosomes) shows this broad distribution of chromatin ...

The nucleus of each human body cell contains 46 chromosomes. Each chromosome contains about 1000 genes. There is enough DNA in all the cells in a human body to stretch to the sun and back again ...

So, it's very easy to see,” she said. To zoom in on changes in chromosome organization during meiosis, the researchers used nuclear membrane and DNA damage protein stains to track nuclear behavior.

With only half the DNA, when the parent cell combines with ... Others cells in your body contain 46 chromosomes: 23 from your father and 23 from your mother. Your egg (or sperm) cells contain ...

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 ...

Understanding the material basis of adaptive evolution has been a central goal in biology dating back to at least the time of ...

Fortunately, the models yielded different predictions about the distribution of old versus new DNA ... original double-stranded DNA unwinding at a single spot on the chromosome known as the ...

A new study from Weill Cornell Medicine provides insights into how cells maintain the tiny end caps of chromosomes as they divide, a key process in keeping cells healthy.

Transposons, or "jumping genes"—DNA segments that can ... in bacteria with linear chromosomes, and the researchers found that ...

Scientists report adaptive divergence in cryptic color pattern is underlain by two distinct, complex chromosomal rearrangements, where millions of bases of DNA were flipped backwards and moved from ...

Each cell with a nucleus contains chromosomes, which are made from DNA Human body cells each contain 23 pairs of chromosomes, half of which are from each parent. So, human gametes (eggs and sperm ...