Identical twins: once fertilization happens zygot break in two Different cells and each one give a different person but as they have the same Genes they are identical.

Contraceptivemethods (is not going to be asked at exam)

Assisted reproduction

Artificial insemination: sperm is placed inside the uterus During ovulation period using a syringe

IVF In vitro fertilization they get egg cell and join them With sperm using a microscope, once fertilization and the zygote develop to Blastocyst it is implanted in the uterus.