Evolutionary chromosomal changes may take a million years in nature, but researchers are now reporting a novel technique enabling programmable chromosome fusion that has successfully produced mice ...

Researchers for the first time have successfully fused two chromosomes in mice and shown that the new karyotype can be transmitted to offspring. The researchers used a strategy that involved haploid ...

For the first time, researchers have fused two mouse chromosomes together in vitro, resulting in living mice with new karyotypes. The new technique, detailed in a study published today (August 25) in ...

This may look like a normal mouse, but its chromosomes were modified by Li-Bin Wang and colleagues in a groundbreaking experiment. Rearrangements of chromosomes usually happen roughly every 1.6 per ...

Chinese scientists have successfully recombined a mouse’s chromosomes to create the world’s first mammal with fully reprogrammed genes. Using the gene-editing tool CRISPR, researchers from the Chinese ...

One of the fundamental rules of inheritance states that different alleles (gene copies) of a trait, such as sex, are ...

Researchers from the University of California, San Francisco (UCSF) say they have now found that when the brain cells of female mice express only a maternal X chromosome, the animals’ memory and ...

Humans have 23 pairs of chromosomes, including a pair of sex chromosomes (typically XX for females, and XY for males). Chromosomes contain hundreds to thousands of genes, which are sections of DNA ...

JAPAN -- Scientists have created mice with two biologically male parents for the first time - a significant milestone in reproductive biology. The team, led by Katsuhiko Hayashi, a professor of genome ...

Most individuals born male have an X and a Y chromosome, while those born female have two X chromosomes. Steven Puetzer via Getty Images Sometimes individuals born with an X and a Y chromosome—most ...