The doctor adjusted his glasses and said very seriously, "From a medical point of view, it is 99.9999% certain to be a father-son relationship."
Cheng Haoming was struck by lightning: "You mean... the child is not mine?"
"impossible!"
Mrs. Cheng immediately retorted.
"The DNA similarity between this child and my son is so high, reaching 95%. How could they not be parent-child relationships?"
"And that child was conceived right under my nose. I watched my daughter-in-law's belly grow bigger little by little. How could it be that he is not my grandson?"
"You must have made a mistake. Think about it again and test it carefully."
The doctor had seen this happen many times, so he said calmly, "Madam, please be quiet and listen to me."
"When we test DNA, the most important thing is to compare the sites in their arrangement. Generally, if all 21 sites are the same, we can completely confirm that they are father and son. But your son and your grandson only have 20 sites in common, and one is different, so we can't be sure that they are biological father and son."
"What do you mean by similar or different? Isn't it just one difference? Maybe there is some genetic mutation? How can you say they are not father and son?"
Mrs. Cheng felt that this doctor was making things up and looking for trouble.
The doctor nodded, agreeing with some of her concerns.
"A genetic mutation from the mother's side cannot be ruled out."
"So, my suggestion is that if you really want to find out, please provide the mother's testing materials."
Mrs. Cheng snorted coldly: "Then let's go back and get it now."
She just couldn't believe it. The child was conceived right under her nose, so how could it be wrong
Cheng Haoming still didn't move: "Doctor, besides the gene mutation on the mother's side, what other conditions could cause this phenomenon?"
The doctor hesitated for a moment and chose to tell the truth.
"The only remaining reason is that the child's father is related to you by blood, and the relationship is very close. Otherwise, the similarity would not be so high."
Cheng Haoming's heart sank to the bottom of the valley, and he asked with trembling mouth: "How close... how close do you want to be?"
"For example, your brother, or..."
Cheng Haoming nervously grabbed his hand: "Or what?"
The doctor didn't care and looked at him with some pity: "Or, your immediate family members."
Cheng Haoming's face turned pale, and he took two steps back involuntarily, leaning against the wall: "You mean... my father, right?"
Doctor: "It doesn't rule out Grandpa or your son."
His grandfather died a long time ago, and he is only 25 years old, and he has no son at all...
Cheng Haoming's whole mind made a buzzing sound, as if firecrackers had exploded.
He staggered and lost his balance, and finally slid down to the ground with his back against the wall.
"Impossible... Impossible..."
"How is it possible... How is it possible..."
His father... and his woman
"Haoming, what are you talking about? What about brother and father, grandfather and son?"
Mrs. Cheng still hasn't figured out what's going on.
She was just thinking about going home to see her children and didn't hear the doctor's physical education instructions carefully.
The doctor glanced at the woman who couldn't even understand what she was saying, but didn't say anything.
"Mr. Cheng, do you want to check more?"
Cheng Haoming's face turned pale. He held onto the wall and struggled to get up from the ground. His eyes flashed with ruthlessness: "Investigate!"
He must get to the bottom of it.