The paper for the genetic test was about the thickness of a thumb and was very small. It was like a piece of sandpaper. The color on it was originally white, but when the blood dripped on it, it slowly changed color.
Jing Fei explained, "This piece of paper can only roughly calculate the scale of a gene. Sister Xi, look. There is a comparison here. The deeper the color, the more genes there are."
The blood was red, so the paper was also red.
Xue Xi looked over. A light pink color represented 1, and a deeper shade represented 2. It would continue to deepen. If she wanted to reach 5, she would probably need a thicker shade of pink. Then, it would be red, red, dark red, and, finally, thick purple-red.
After Xue Xi's blood dripped on it, the paper did not change color.
