On page 1086, Kuroiwa et al. describe a chromosome-cloning system that can handle large segments of genomic DNA. They cloned large fragments of human chromosomes into a mitotically stable human ...

Loss of the Y chromosome (LOY) in men, a dynamic mutation linked to aging, impairs immune function and increases risks of ...

but a three-dimensional reconstruction of the once-magnificent animal's chromosomes. "This is a new type of fossil, and its scale dwarfs that of individual ancient DNA fragments – a million ...

After all, he observed, the point of screening was to spot extra chromosomes in the woman’s blood sample. Whether the DNA being scanned was from the fetus or from the mother didn’t matter. The ...