As a scientist specializing in the evolutionary biology of sex differences — researching ... and it is defined by gamete size. (I’ll discuss some of the technicalities shortly.) ...

In response to Trump’s Day One biological sex executive order, three prominent evolutionary biology organizations ... saying sex is “universally defined by gamete type.” ...

“A person’s sex is unchangeable and determined by objective biology. The use of hormones ... because such actions do not change the type of gamete that the person’s reproductive system ...

“A person's sex is unchangeable and determined by objective biology,” the webpage on the ... because such actions do not change the type of gamete that the person’s reproductive system ...

The study, published in Cell today, reveals how the retrotransposon copia completes its replication cycle and travels into the nucleus through the nuclear pores. The study is a collaboration between ...

In response to Trump's Day One biological sex executive order, three prominent evolutionary biology organizations ... saying sex is "universally defined by gamete type." ...

Transposons, also known as jumping genes or mobile genetic elements, can replicate and reintegrate themselves into the genome, posing a threat to genomic integrity by inducing DNA rearrangements and ...

"A person's sex is unchangeable and determined by objective biology," the page reads. "The use of hormones or surgical interventions do not change a person's sex because such actions do not change the ...

The site contends that a person's sex is "unchangeable and determined by objective biology." "The use of hormones or surgical interventions do not change a person's sex because such actions do not ...

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