I’m a Caucasian woman married to an African-American man. Shortly after we married, I discovered that I couldn’t conceive my own biological children. We opted to ‘‘adopt’’ two embryos. (Couples who have successfully undergone in-vitro fertilization and don’t wish to have more children can donate remaining embryos to other couples.) I was soon pregnant and gave birth to twins. Based on the records of the fertility clinic, we know that our children are genetically mixed Hispanic and Caucasian. I am not comfortable being open about the origin of my children, except with family and close friends, until they are old enough for me to explain it to them. However, several times in the last three years, I’ve been asked about their race, most recently on a pre-K school application form. On this form, there is no option of ‘‘mixed race’’ or ‘‘other.’’ Therefore, I identified my children as black. Was this the right choice?