Identical Twins: Not Identical?

Meet the small DNA differences that make their mark by existing in the magical period of early development. We'll hear how mutations in the very first stages of human embryos have bizarre consequences for identical twins; and how even earlier in the process, sperm use selfish genes to get ahead of the competition. Plus, an immunologist untangles mRNA COVID vaccines, from efficacy numbers to delayed booster shots... Like this podcast? Please help us by supporting the Naked Scientists