Z is for Zygote — St. Patrick’s Day A-Z

A zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction.

SO WRAP IT UP ON ST. PAT'S OR NEXT YEAR YOU'RE PUSHING A STROLLER AT THE PARADE!

(Note: We know this isn't a picture of a baby, but there's a leprechaun, and that's good luck.) 

Happy St. Patrick's Day!