Episode details
Available for over a year
Human fertilization is the union of a human egg and sperm. The egg and sperm each contain half of a human's genetic information. Packaged in chromosomes, this information is known as DNA.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
Human fertilization is the union of a human egg and sperm. The egg and sperm each contain half of a human's genetic information. Packaged in chromosomes, this information is known as DNA.
Programme Website