Q. In cloning of cattle, a fertilized egg is taken out of the mother's womb and
A) in the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows
B) in the eight cell stage the individual cells are separated under electrical field for further development in culture media
C) from this up to eight identical twins can be produced
D) the egg is divided into 4 pairs of cells which are implanted into the womb of other cows
Explanation
[Solution from source] In embryo-splitting cloning, the early embryo is taken out at about the eight-cell stage, its cells are separated and each is grown into a small embryo that is implanted into a surrogate cow. The cells are not separated by electric fields, and the embryo is not implanted as pairs of cells. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.