A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

但是，在身体的每一个细胞里，只需要用到其中的一条X染色体（X-chromosome），所以另一条就会被随机“关掉”。这就意味着，在一些细胞里，只有妈妈传下来的那条X染色体在工作；而在其他细胞中，则是爸爸传下来的那条X染色体在发挥作用。 最近，加州大学 ...

Researchers at Linköping University in Sweden made an unexpected discovery while investigating genetically unique women.

UCSF researchers found that brain cells age more quickly when they rely solely on the X chromosome inherited from a female's ...

the sex chromosomes, is different. Typically, females have two X chromosomes (XX), whereas males have one X chromosome and one Y chromosome (XY). Sex chromosomes not only influence a developing ...

Gene editing techniques may eventually allow trisomy to be treated at the cellular level, according to an in vitro ...

A high-quality genome assembly of Silene latifolia was generated by researchers at CNRS/Université Claude Bernard Lyon 1 and ...

Medically reviewed by Smita Patel, DO Duchenne muscular dystrophy (DMD) is a rare neurological condition that causes severe muscle weakness and intellectual disability. DMD is an inherited (passed ...