688 Think Alike (2/2)

Gu Xijiu knew that they did not understand so she just casually answered, ”It is your level of understanding. If the level of understanding is high, then you are monozygotic twins. Otherwise, you are the fraternal twins…”

Everyone thought that it was the right explanation and were relieved, but Long Siye choked another time. He looked at Gu Xijiu and shook his head. Gu Xijiu stared at him to warn him not to reveal the secret.

Long Siye smiled at her and talked to her through Directed Audio, ”Liar! You can try to lie some more. I guess your biology teacher will come out from the coffin to scold you!”

Gu Xijiu laughed and replied, ”It’s okay. Even if my biology teacher could come out from his coffin, he can’t pass through time and come to this world.”

”It is hard to tell. Perhaps your teacher could do it as he is too angry with your statement.”

”Well, he is too weak to fight against me as long as you don’t help him.”

”To be honest, I felt like punching you too when you explained to the twins in this way. I was your instructor too, remember?”

”Well, do you think they are monozygotic or dizygotic?”

”Of course they are monozygotic. The twins are very alike. Obviously, they came from the same egg and sperm…”

”I remember that if twins came from the same egg and sperm, they should be of the same sex but they are not.”

”It is relatively rare but still possible. You can observe the twins. There is a mark on the left ear of the brother while the mark is on the right ear of the sister. Besides, you can see that the shapes of their palms are the same. The left arm of the brother is stronger, so apparently, he uses his left hand in combat. The opposite was true for the sister.” Long Siye was indeed a physician and was very familiar with all these types of things. He could analyze someone based on the posture of that person.