1/3/11
Our Identical Twins
For the inquiring minds, I wanted to post the scientific details behind Karis & Kelsie's identical twinhood. ;)
It was concluded that our girls are, what is medically referred to as, Monochorionic-Diamniotic Twins. Identical (Monozygotic) twins occur when a single egg is fertilized to form one zygote which then divides into two genetically identical, yet separate embryos 4-8 days after fertilization. Monochorionic twins are monozygotic (identical) twins that share the same placenta and generally have two amniotic sacs (Diamniotic) which occur in 60%-70% of the pregnancies with monozygotic twins.
If you're anything like me, visual aids help a lot, so here's a graph.
The twins share the same DNA set, thus they may share many similar attributes. However, since physical appearance is influenced by environmental factors and not just genetics, identical twins can actually look very different. Identical twins are always same-sex sets.
1/2/11
We have a mover!
Karis crawled to her Dad this evening when he came home on break! She's been inchin' along for a week, but this is the farthest she's gone. We're so proud!
She also discovered how to clap her hands! It's been a big week for her.
She also discovered how to clap her hands! It's been a big week for her.
Once she figured it out, she just kept on with the applause! ;)
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