Question:medium

Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?

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Different sexes = Fraternal twins. Same sex = Could be identical or fraternal.
Updated On: Nov 26, 2025
  • They are fraternal twins.
  • They were conceived through in vitro fertilization.
  • They have 75\% identical genetic content.
  • They are monozygotic twins.