Give any two reasons for the infertility among young couples

  1. Give any two reasons for the infertility among young couples.
  2. Test-tube baby programme is a boon to such couples. Explain the steps followed in the procedure.
  1. The reasons for infertility could be physical, congential, diseases, drugs, immunological or psychological.
  2. In this method, ova from the wife/donor and sperms from the husband/donor are collected and are induced to form zygote under simulated conditions in the laboratory. This is followed by Embryo transfer(ET). It is 2 types :
  3. Zygote Intra Fallopian Transfer(ZIFT) : Transfer of zygote or early embryos into fallopian tube.
  4. Intra Uterine Transfer(IUT) : Transfer of embryos with more than 8 blastomeres into the uterus.
    Embryo formed by in vivo fertilisation is also used for such transfer to assist those females who cannot conceive.