the adoptive parents were never told that their children had siblings. any louise wise adoptee from the 605 has every right to think perhaps they have a twin. the separated twins were placed in a controversial study to explore what makes us who we are, and how much is defined by nature versus nurture. but at what cost? it s so emotional for me. what they did was so| unethical, so amoral. stories of twins have long captured human imagination. there is something beguiling about having an identical copy of yourself, and the resulting bond that would create. hi. hello. which one s which? i m pam. i m pauline. identical twins share all their genes having split from a single fertilised egg in the first two weeks after conception. fraternal twins share half their genes on average. they result when a women releases two eggs at the same time and they are fertilised by two separate sperm, so they have 50% of their genes in common on average, like ordinary siblings. comparing resemblanc
it s an effort to ease the global food crisis, that is affecting millions of people around the world. now on bbc news, the media show. welcome to the addition of the media show stopping the conservative party leadership races down to two candidates, rishi sunak and liz truss. there have been two debates between them and some of the other candidates already, one got cancelled after some of the candidates declined to take part and then the bbc is planning another with just the final two and the whole process and the way the debates have played out have raised broader questions about how they run. we are going to be speaking to jonathan from sky news, julie etching as well, but first of all let s bring in faisal islam because faisal, you are going to be part of the on air team for this bbc debate, tell us more. . for this bbc debate, tell us more. . , ., for this bbc debate, tell us more. ~ . , ., for this bbc debate, tell us more. ., more. an awful lot has been done, more.
welcome to our viewers on pbs in america and around the globe. a potential visit to taiwan by the us house speaker, nancy pelosi, is stirring alarm in presidentjoe biden s administration. officials are concerned the trip may cross red lines for china and fears there s no potential exit path. beijing, which claims sovereignty over the island, has already issued harsh warnings, even suggesting a possible military response. against this backdrop, president biden is expected to call president xi on thursday, for the first time in months. gareth barlow reports. this is taiwan. to beijing it is the breakaway province that must become part of the country, if need be by force. to washington it is of the territory of the us has pledged to defend, if it ever comes under attack. an island nation of 23 million, at the centre of a struggle between two global superpowers and it is a potential visit to taiwan by nancy pelosi, second in light of the us presidency, we will be the host ranking
it s an effort to ease the global food crisis, that is affecting millions of people around the world. now on bbc news, it s time for click. we ve got a tasty programme for you this week. when is chocolate not chocolate? when it s made of. kinky salts! don t knock it till you ve tried it! right. lj s feeling out of this world as she explores the new ways to tidy up high speed space trash. we re going to be bathed in lights and sounds, and apart from that, i have no idea what to expect. and spencer takes a trip to an inner world. yeah, i m looking at the inside of my own brain. 0h, did you find it? how dare you! 0k, what s this one? oh, that s nice. that s 70% dark, isn t it? good. you know your stuff. mm hm. and this one? oh, that s very bitter. i d go 90%. yeah? yeah, you re doing well. now for the big one. there you go. oh, gosh! 0h! oh, that s 100% chocolate, isn t it? oh, that is awful. you did volunteer to be the one to eat the chocolate. tastes like tarmac. cocoa is, of