Harry Potter and the Old Ones

The sliding door of the compartment opened, and the youngest, the fiery red-haired child, walked in.

"Can I do this?" He pointed to the empty seat opposite Harry, and asked cautiously, "Other places are full."

"Okay, please sit down."

Ron did it, and lost two naughty twins to help him. The young Ron was still a little cautious when facing the legendary Harry Potter.

He glanced at Harry, then at Tierra who was sitting next to Harry reading a book, and immediately turned his gaze out of the car window, pretending not to look at Harry.

Harry saw a very conspicuous dirty thing on the tip of his nose, like the dried wall skin after mixing wall ash and cheese. He saw Tierra's always neat and meticulous appearance too much, and the dirty thing on Ron's nose It looks very dazzling.

It made Harry wish he could hang up with his hands.

"Hey, Ron."

The Weasley twins also came to find Ron along the private room after saying goodbye to their mother and little sister.

"Listen, we want to go to the middle car now, I heard Jordan got a big marsupial spider!"

"Oh." Ron grunted, clutching the hem of his clothes tightly with both hands, looking a little nervous.

"Harry, and Tierra!" said the other twin. "We haven't introduced ourselves to you yet. My name is Fred and his name is George. This is our little brother, Ron Weiss." Lai. See you later."

After speaking, the Weasley twins started running in the train aisle in a hurry.

"Goodbye." Harry and Ron responded politely, while Tierra sighed looking in the direction the twins left.

The so-called tragedy is to destroy the beautiful things.

Tiera thought silently in her heart.

Then Tierra gently closed "Fantastic Beasts and Where to Find Them"

"Hi, my name is Tierra Wu." Tierra reached out to Ron while speaking, "We will be classmates from now on."

"Uh... Well, I, my name is Ronald Weasley! You can call me Ron." Ron also held out his hand.

"You, do you remember what the mysterious man looked like?" After Tierra broke the awkward silence, Ron finally mustered up the courage to ask the question he wanted to ask the most.

"I don't remember," Harry replied, and if he did, he wouldn't have to wait until he was eleven to find out he was a wizard.

"Don't remember at all?" Ron asked eagerly.

"Well... I only remember that there were many, many green lights, and I don't remember anything else."

"Oh!" Ron stared at Harry's forehead for a long time, and then suddenly realized that this seemed to be a very impolite thing, and turned his head quickly, looking out the window.

"Are all your family wizards?" Harry asked when he realized that he and Ron were interested in each other.

"Oh, yes, I think so," said Ron. "My mum had a second cousin who was an accountant, I think, but we never talked about him."

"Accountant?" Tierra keenly caught this point.

This is the instinctive intuition of being a biological dog.

"That means a relative on your mother's side isn't a wizard?" Tierra asked.

"Well...it seems to be so, from what they say." Ron scratched his head.

"Your relative is an accountant. Are both parents wizards? Or is there a wizard and a Muggle? What about the grandparents on the father's side of your relative? Are they all wizards? Or do they have Muggle blood? Yours Where are the grandparents on the mother's side of the relative? What's the situation?"

"Uh... To be honest, I don't know the details... Those are our very distant relatives, we have almost no contact..." I was a little dizzy when asked, I don't know why Tierra would treat such trivial matters The matter is so inquisitive.

I had no choice but to silently label Tierra a weirdo in my heart.

"Really..." Tierra looked a little disappointed, "That's a pity."

To be honest, Tierra was very curious about the appearance of the wizard.

Although the explanation of the source of magic in Merlin's notes and "Necronomicon" is the three-dimensional theory of matter, spirit and spirit.

However, the existence of Squibs and the sudden birth of a wizard offspring from a Muggle that has no wizard blood at all, and the fact that the heredity of the Muggle species is almost the same as that of pure-blood wizards made Tierra keenly aware of a trace of genetics. Phenomenon.

Tierra speculates that the presence of the Squibs is likely a genetic masking phenomenon.

According to Rowling's supplementary settings about Harry Potter that Tierra knew in her previous life, there are only more than 8,000 wizards in the UK, plus the pure blood theory that some wizards have always insisted on, so it should be quite easy for wizards to marry close relatives. common.

Judging from Neville's experience, that is, he never showed obvious magical talent when he was a child, he didn't show magic until he was thrown down the stairs by his uncle, and his silent existence. If it is determined by genes, the expression of these genes is more seriously affected by the environment, indicating that it is likely to be a quantitative trait gene.

From a genetic point of view, inbreeding will lead to an increase in homozygous or identical genes, which contributes to the accumulation of quantitative genes, just like the selection of desired quantitative traits in hybrid rice, which often requires several generations of selfing.

The accumulation of this quantitative gene eventually leads to the overexpression of a certain type of quantitative gene, covering or inhibiting the expression of its alleles.

This may be the reason why the squib appeared.

Squibs are also three-dimensional creatures, they can see the dementors of spiritual beings, and if it is considered that being able to have coordinates in the spiritual dimension is the result of gene expression, then the reasonable explanation for Squibs is that the gene responsible for the coordinates of the spiritual dimension is overexpressed, and then completely obscured The one that is equivalent to it can express the gene for the trait of using magic.

Hmm... Tierra nodded silently, all of this is just conjecture without evidence.

If Ron's distant relative's parents were both pure-blood wizards, and his ancestors had never had a record of intermarriage with Muggles, it might be a strong evidence for his conjecture.

But the final confirmation still has to be based on rigorous experiments to demonstrate this conjecture.

It's a pity that he has no idea, and he doesn't have the supporting experimental facilities... and there is also a lack of experimental personnel.

Otherwise, if this experiment can be done, it must be at least a Nobel Prize-level discovery.

This reveals another possible branch in human evolution.

Tierra suddenly discovered that the world of wizards is a big subject, not limited to the study of genetics, but also the physical and chemical principles of magic, transfiguration, and the biological principles of Animagus.

And further, the research on wizard psychology, social structure and Gringotts financial system alone can allow a large number of grammar department researchers to apply for a large number of projects and funding.

Hmm... It's better not to conduct too much research for the time being.

Although he is in the wizarding world of Harry Potter.

This seemingly simple and orderly magical world on earth only occupies a very insignificant part of the entire disordered universe.

The laws of most of the universe beyond Earth are crazy and chaotic.

This makes the knowledge corresponding to these cosmic laws also dangerous to drive people crazy.

But this is not the reason for Tierra to stop here.

Technology is the primary productive force.

This is an eternal truth.

Just look at the wizards of this world.

The long-term stagnation and complacency in the study of magic has made these wizards who have created countless glorious legends step by step from gods and legends revered in ancient times to poor worms who can only live in the wilderness.

Explain to the cuties who are not biology majors.

Quantitative trait genes are traits controlled by two or more alleles.

It mainly has the following characteristics:

① Differences between individuals are difficult to describe and need to be measured;

②In a group, the variation is continuous;

③ Quantitative traits are often controlled by polygenes;

④ Quantitative traits are sensitive to environmental influences.

Most of the traits in organisms are controlled by quantitative genes, such as the flower color of wild flowers, and the offspring produced by crossing a red flower and a vernacular flower will not completely follow Mendelian inheritance laws, except for those that are similar to their parents In addition to white flowers and red flowers, there will be varying degrees and quantities of pink and reddish flowers.

People's hair loss gene is also controlled by the quantitative trait gene, and the individual of the carrier's hair loss gene is easily affected by the external environment.

Such as high-fat and high-salt food, staying up late, irregular life, and even the climate.