When a species lives in two distinct types of habitats, individuals with traits better suited to each habitat will thrive and ...

Researchers at a lab in Kansas City believe they have made a breakthrough discovery in understanding infertility.

Human egg cells are often prone to chromosomal errors. As women age, the error rate increases sharply — and can contribute to infertility, pregnancy loss, and ...

Researchers have revealed the mechanisms by which cells enter senescence because of an imbalance in the number of chromosomes. Chromosomal instability is a common trait in most solid tumors, such as ...

Chromosomal aberrations, encompassing both structural and numerical chromosome abnormalities, are fundamental indicators of genomic instability with far‐reaching implications for cancer risk. These ...

Osaka, Japan - Gross chromosomal rearrangements—where portions of the genome become moved, deleted, or inverted—can lead to cell death and diseases such as cancer in complex multicellular organisms.

Scientists discover shattered chromosomal fragments are tethered together during cell division before being rearranged; destroying the tether may help prevent cancerous mutations. Healthy cells work ...

Sex chromosome abnormalities, including missing or extra X and Y chromosomes, can be difficult to detect in ancient DNA as it slowly erodes over time or becomes contaminated. Scientists have now ...

Researchers at the Johns Hopkins Kimmel Cancer Center and its Ludwig Center uncovered new evidence that extra copies of a ...