High genetic diversity within a population is often associated with sexual reproduction in a sexually compatible microorganism (Campbell and Carter 2006).
* The sexually compatible enjoy one another's odour – that is one meaning of the sexual chemistry between them.
Let me put it this way, we're just very sexually compatible in every way.
Today's plant breeders can incorporate genes from plants that are not sexually compatible with each other.
Genes may introgress from transgenic crops into sexually compatible wild relatives via pollen flow.
Pollen does spread, but that doesn't happen so easily; producing new seeds requires a sexually compatible plant.
And so they marry, while knowing almost nothing about each other except that, for the moment anyway, they're sexually compatible.
There is plenty of research on the notion popularized by Alfred Kinsey that women reach their sexual peak much later than men do, so older women and younger men may be especially sexually compatible.
For thousands of years, people have crossed sexually compatible plants and then chosen among their offspring for what seemed like desirable characteristics (sturdy roots, for example, or resistance to disease).
To address this concern, we ran another study in which we asked 385 STEM graduate students to read a hypothetical scenario about a single, sexually compatible co-worker who asks another single co-worker out on a date.
Rebecca devises questionnaires for women's magazines - "Is he Mr Right?", "Are you sexually compatible" - and her latest, rather less cheery, test is a longevity quiz, which claims to predict exactly when someone is going to die.
