UPSC Previous Year Question | Prelims GS | 2020

In the context of recent advances in human reproductive technology, 'Pronuclear Transfer' is used for

  1. fertilization of egg in vitro by the donor sperm
  2. genetic modification of sperm producing cells
  3. development of stem cells into functional embryos
  4. prevention of mitochondrial diseases in offspring

Answer

Correct Answer

prevention of mitochondrial diseases in offspring

Explanation

In pronuclear transfer, the nuclear material of the parents' zygote is moved into a donor egg with healthy mitochondria. This prevents the transmission of mitochondrial diseases to the child.

Topics: biotechnology & health, pronuclear transfer - mitochondrial replacement (three-parent baby), reproductive technology, science & technology