Older mice have more new mutations -- changes in DNA sequence that occur in the individual rather than being inherited from a parent -- than younger mice in the genomes of their mitochondria, ...

The study reveals that these neighbouring cells are significantly more vulnerable to ageing-related damage, offering fresh ...

WOODS HOLE, Mass. -- While humans can’t renew their reproductive cells and organs if damaged, many invertebrates can as part of whole-body regeneration. Understanding how and why could have major ...

Scientists have known that sex-determination in vertebrates happens in the germ cells, a body's reproductive cells, and the somatic cells, the cells that are not reproductive cells. Yet they have not ...

New research has mapped the cell types that specialise to form reproductive organs in both sexes, identifying key genes and signals that drive this process. The findings offer important insights into ...

Scientists studying tiny roundworms have uncovered how the secrets of a long life can be passed from parents to their offspring — without changing DNA. The discovery shows that when certain cellular ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...