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 ...

Human biological sex is determined by the sex chromosomes X and Y. In most cases, females possess two X chromosomes, while males have one X and one Y. However, there is some evidence that the Y ...

Researchers from Tokyo Metropolitan University have developed a suite of algorithms to automate the counting of sister ...

Find out more about how loss of Y chromosome in ageing males was linked to higher heart attack risk in a large prospective ...

Autism spectrum disorder (ASD) is a neurological and developmental condition that can be diagnosed at any age, although the symptoms tend to appear in the first two years of a patient's life. ASD can ...

Females carry two X chromosomes, after inheriting one from each parent. In order to stop serious problems from arising, cells of the body silence one of those X chromosomes in a process known as X ...

Scientists first read the human genome, a three-billion-letter biological book, in April 2003. Since then, researchers have steadily advanced the ability to write DNA, moving far beyond single-gene ...

Despite the immense amount of genetic material present in each cell, around three billion base pairs in humans, this material ...