(a) List any two reasons other than physical and congenital disorders for causing infertility in couples.
(b) Explain how IVF as a technique helped childless couples in having children.
(c) Compare with .
a)
b)
In In-vitro fertilisation the fertilisation takes place outside the body followed by embryo transfer in this method ova from receiver/donor and sperms from receiver/donor are collected and induced to form a zygote in the lab, zygote / early embryo is transferred into the fallopian tube, embryos with more than 8 blastomeres, are transferred Into the uterus for further development
c)
GIFT |
ICSI |
Transfer of an ovum collected from a donor Into the fallopian tube of another female who cannot produce one. |
Specialised procedure to form embryo by injecting sperm directly into the ovum. |