![]() nuture precedence and wondered what of our human make-up is inherent and what is learned behavior. Throughout history, psychologists, scientists, sociologists and the general public have debated the nature vs. ![]() Just kidding! However, twin studies are a vital contribution to scientific research. In some extreme cases, mirror twins can even have asymmetrical organs or reversed skeletal features, but of course, they’re not allowed out of the lab. So, even though there’s no official mirror twin stamp of certification, if you’re an identical set of twins and share asymmetric characteristics, it’s highly likely that your zygot split in the later stage. These mirror asymmetries includes, dominant-handedness, dental patterns, birth marks, hair whorls and body abnormalities like, in Rowan and Stuart’s case, a slight twist in one earlobe. Interestingly, there is no DNA testing which can distinguish mirror twins and instead, their features and characteristics have to be observed. “You can also look at mirror twins as a near miss of being a conjoined set of twins and maybe mirror twins should consider themselves as really lucky that they didn’t end up being in that situation,” he says. Dr Stephen Robson, an experienced obstetrician and gynecologist says, that aside from their asymmetrical characteristics, mirror twins are significant because of the insight they give into how embryos form and consequently, how many the characteristics (like whether a twin is left or right-handed) are evidently mapped out by our DNA. Mirror twins are identical twins whose fertilised egg split later in the zygotic stage – between 9-12 weeks, which is just shy of the formation of conjoined twins. Television's favourite double act, Rugrats' Phil & Lil These effects which alter a person’s appearance, counter the common misconception that identical twins are forever as doubled as B1 & B2. They are subject to different stresses, have consumed different foods, lived in different climates and broken different bones. After 30-odd years of living, Rowan and Stuart have lived different lives. Even though Rowan and Stuart look the same, they are a prime example that identical twins aren’t always exactly identical. Although I’d be more than happy to indulge my fantasies of clones and doppelgängers walking among us, the reality is that twins are two different people. But these matches only aligned to a degree. They shared the same mannerisms, they both (irritatingly) pronounced it ‘ezzactly’, and of course, their general appearance was hugely alike (I like to think of it as 'a face so good, reproduction had to make two'). When I first met Rowan, Stuart’s double, I was pretty overwhelmed by their similarities. It’s the dilemma of dating an identical twin. You know that moment when you meet your partner’s sibling for the first time and they look so identical that during a family dinner at Gran’s place, you accidentally go to put your arm around your significant other, only to realise that he’s still in the lounge room and you’ve been flirtatiously lingering by his brother’s side for the last three minutes?
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