Monozygotic twins develops from

The correct option is D Same zygote

• There are two types of twins, Fraternal or dizygotic twins, and monozygotic twins.
  
• When the zygote, during the cleavage, separates and forms two different cells and both of them grow individually as embryos, they form the monozygotic twins.
  
• Monozygotic twins are of the same sex.
  
• When 2 zygotes are fertilized by two different sperms they form the dizygotic twins.
  
• They can be of different sex.
  

So, the correct option should be 'Same Zygote'.