I have this one class. I sometimes wonder whether or not they have a pulse. I’ve tried all year long to get them excited, but every time I try, all I get is… cricket cricket.
Today though, we talked about how humans get genetic diversity through meiosis and such, and we were talking about how there’s a tiny tiny chance (about 1 in 200 billion) of making a person exactly identical to you. All of a sudden, I had their attention. Then someone asked: Has it ever been done before? Had two people that were genetically identical but who weren’t identical twins? #extracredit. I guess we’ll see tomorrow.
But until then, I found some super cool resources that I’d love to show them one day when I get to the twin mini-lesson.
I’d love to show them this image: identical twins marrying identical twins and having babies:
And have them read this article: A Thing or Two About Twins from National Geographic to give them the twins perspective on being twins.
I would also love to delve into the nature versus nurture issue: do our genes make us who we are or is it the environment?
- NPR did an awesome piece on it called “Identical Strangers” in which they interviewed a set of identical twins who were adopted and raised by different families.
- Then I found this article on The Epigenetics of Identical Twins in which they get down to the chromosomal level and see how the epigenetic tags fade/get added over time in a pair of twin’s lifetimes.
- But I also found this one that studies several sets of twins that were separated from birth and the striking similarities even though they weren’t raised in the same environment. It’s called “Twins Separated at Birth Reveal Staggering Influence of Genetics”