Sex determination at birth is decided on the chromosomes the baby has. A female has two X chromosomes, whereas a male has one X and one Y chromosome. According to Medline Plus, in every cell, humans ...

Humans contain 46 chromosomes (23 from their mother, and 23 from their father) in each of their body cells. This image shows duplicated chromosomes from a human male. Summary Scientists at the Sloan ...

Two years ago, when an international team of scientists announced it had finally sequenced and assembled the first fully complete human genome, including previously unmappable regions, Melissa Wilson ...

Cancer cells with extra chromosomes depend on those chromosomes for tumor growth, a new Yale study reveals, and eliminating them prevents the cells from forming tumors. The findings, said the ...

Scientists have finally uncovered the exact DNA sequence where human chromosomes fuse to form Robertsonian chromosomes, a mystery that has puzzled researchers for over a century. Using advanced genome ...

New research by a scientist at the Milner Center for Evolution at the University of Bath suggests that "selfish chromosomes" explain why most human embryos die very early on. The study, published in ...

Abnormalities in the structure of chromosomes within someone’s genetic makeup are called structural chromosomal abnormalities. Robertsonian translocations are very rare structural chromosomal ...

Up to the present, at least 52 loci responsible for autosomal recessive non-syndromic hearing impairment (ARNSHI) have been published and 26 genes were identified ...

Scientists at the Sloan Kettering Institute have solved the puzzle of how small chromosomes ensure that they aren’t skipped over during meiosis, the process that makes sperm and egg. From avocado ...