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.

Translocations involving human chromosomes are of great clinical interest ... translocation chromosomes were placed next to their normal homologues. At least 30 rearrangements were observed ...

Extrachromosomal DNA (ecDNA) is a unique form of circular DNA that exists outside of normal chromosomes. Found exclusively in ...

It is the smallest human chromosome that spans about 48 million ... cell division happens early in development—either after a normal egg and sperm unite or when some cells lose the extra chromosome.

STUDIES of human chromosomes have been greatly ... 21 in a child with some mongoloid features, who was of normal intelligence. Chromosome analysis revealed her to be a mosaic with a mixture ...

But it might also put us at risk for uniquely human brain disorders. The study appears in Nature. The research focused on parts of chromosomes known as human accelerated regions (HARs), which have ...

Chromosome 21 is the smallest human chromosome ... with the extra piece of chromosome 21 is inherited together with two normal copies of chromosome 21, DS results. It is possible, however ...