It's tricky to make an exact copy of yourself. Or at least it is for cells undergoing mitosis, where cells replicate ...

During prophase, the initial stage of mitosis, replicated chromosomes are compacted into thick fibres. The membrane that surrounds the nucleus subsequently breaks down and the chromosomes separate ...

Researchers at The University of Texas Medical Branch (UTMB) have identified how a key enzyme called ATR protects DNA from ...

The 23 rd chromosome base pair contains what are known as our sex chromosomes. For most females, this pair contains two X chromosomes, while for most males, it contains one X chromosome and one Y ...

Humans contain 46 chromosomes (23 from their mother, and 23 from their father) in each of their body cells. This image shows duplicated chromosomes from a human male. Summary Scientists at the Sloan ...

For palaeontologists, DNA is infuriatingly fragile. Its long chains begin to break apart shortly after death, destroying valuable information about the deceased parent organism. Unlike bones, ...

Researchers found that smaller cancer cells with doubled DNA often behaved more aggressively than larger ones.

Triploidy is a condition that affects 1% to 3% of pregnancies. It’s when a developing baby has an extra set of chromosomes, the thread-like structures that carry DNA. A triploidy pregnancy usually ...

Merotelic kinetochore (single kinetochore attaches to microtubules from two spindle poles) has been proposed to be the major mechanism underlying the spontaneous formation of lagging chromosomes, ...

Get ready for a biology lesson. Certain plants have extra sets of chromosomes. And it turns out, it's a useful trait for a ...

Imagine a chromosome. You’re probably picturing a nice little X shape, aren’t you? That’s probably what your high school science teacher taught you, anyway. Well, it turns out that’s not actually what ...