Question

In cloning of cattle, a fertilised egg is taken out of the mother's womb and

• A. the egg is divided into four pairs of cells, which are implanted into the womb of other cows
• B. in the eight-celled stage, cells are separated and cultured until small embryos are formed, which are implanted into the womb of other cows
• C. in the eight-cell stage, the individual cells are separated under electrical field for further obtained in culture media
• D. from this up to eight identical twins can be produced

Answer 1

The correct option is B

in the eight-celled stage, cells are separated and cultured until small embryos are formed, which are implanted into the womb of other cows

In cloning of cattle, a fertilised egg divides into 2, then 4 and then 8 cells. This embryo is carefully implanted into the womb of cows.