He recently led an international research team that discovered a way to replace a chromosome that contained a severe defect with a normal chromosome. Such research has the potential to correct ...

There are now four daughter cells — two from each of the two cells that entered meiosis II — and each daughter cell has half the normal number of chromosomes (Figure 7). Each also contains new ...

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

Figure 2c shows portions of the karyotype in which translocation chromosomes were placed next to their normal homologues. At least 30 rearrangements were observed in this cell, and some of the ...

More than half a century ago, scientists noticed a distinctive abnormality in the karyotypes of some soft-tissue cancers: unusually large chromosomes, now referred to as neochromosomes. In a new ...