The Memoirs of Cultivating Immortals

Chapter 333 Split
"Mode of reproduction?" Thor held a hammer, and there seemed to be many question marks floating above his head.

"Yes."

Li Ang nodded, and said casually: "In the fairy tales, the male frost giant Mimir and the female frost giant Bestra popped out of the armpits of the frost giant Ymir.

Regardless of whether Bestra was taken away by Baoer, or she and Baoer truly fell in love with each other, the two finally gave birth to three Aesir gods including Odin, which means that Bestra is your real grandmother .

If you don't believe it, check it out in a family tree. "

Thor was silent. Since childhood, no matter whether it was the priest Odin or the queen Freya, they rarely told Thor the history of the previous generation, even if they asked the elders in the domain of God, most of them remained silent.

The adults rarely mentioned that period of history, and Thor's own upright and simple or one-sided personality made him completely uninterested in the history of the nine kingdoms in the early days (this is why in "Thor" 3", where Thor doesn't even know why he has a sister named 'Hella').

It is possible that even Odin himself is disgusted by the frost giant factor in his blood.In addition, it would be too bad if the Asgard warriors knew that the frost giant soldiers they slaughtered were actually blood relatives before the ages.

Having figured out this joint, Thor couldn't help but nodded, frowned at Li Ang and said, "Well, even if Bestella is really my grandmother, what does it mean?
The Asgardians and the frost giants of Jotunheim are now completely two species. "

"Oh? Is that really the case?"

Li Ang said with a sneer: "In biological taxonomy, a species refers to a group of individuals that can mate and reproduce. The hybrids produced by this individual and other organisms cannot reproduce again.

This means that the division between species is based on reproductive isolation.

If the Frost Giants of Jotunheim and the Asgard Protoss of Asgard can no longer be judged as two species, then a hybrid product like you is likely to suffer from infertility. "

".what?!"

Thor was stunned and confused, and took a half step back in fright—for the vast majority of men, losing their fertility is definitely an unbearable burden in life.

Captain America and Tony Stark on the side have been standing aside just now, listening to the mysteries of Nordic mythology - Stark is a brilliant student after all, even if he is studying in the Department of Electronic Engineering, he still has some understanding of the mythology of literature and art , but the US team who was born in Brooklyn (slums) can't, it's completely like listening to the scriptures.

However, both of them could understand the word "infertility", and they cast sympathetic glances at Thor for a while.

Instead of being grateful for the sympathy of his teammates, Thor said angrily: "Can gods be the same as mortal creatures? God is a god, with qualities beyond the imagination of most mortal creatures.

In addition, from energy, metal smelting, to agriculture, medical treatment, Asgard has technological capabilities far ahead of the earth,
We also have state-of-the-art medical equipment that effectively treats the most untreatable ailments on earth—and none of those equipment showed that I was at risk of infertility. "

"Are you sure?"

Li Ang curled his lips, did not continue to entangle on this issue, and said directly: "From the appearance, the frost giants are indeed divided into male and female, but after I explored Luo Ji's physiological structure, I found some abnormalities. place.

In the myth, the frost giant was born from Ymir's armpit - this kind of religious description is naturally not true, so what is the most likely explanation for the frost giant's mysterious reproductive method? "

He paused and glanced at the Avengers.

".Mitosis?" Tony Stark said hesitantly.

"That's right." Li Ang smiled and snapped his fingers, and said, "The answer is mitosis. Frost giants seem to be an ordinary species, but the eukaryotic cells that make up their individual life will have spindles and chromosomes during the division process. The daughter chromosomes that have been replicated during the DNA synthesis period are evenly distributed among the daughter cells."

Captain America and Thor were still in a daze, but it was Stark who reacted first. The talented MIT graduate said subconsciously: "Wait, is the frost giant's mitotic type animal or plant?"

"Animals." Li Ang smiled more happily, and explained: "The mitosis of animal and plant cells is very different. Animal cells have a centriole. During the division process, the two centrioles in the centriole will each produce a new centriole , that is, two new sets of centrioles.

During the division process, two groups of neutrophils move to the poles of the cell and emit numerous rays to form the spindle.At the end of cell division, a cell plate does not form in the middle of the cell, but the cell membrane sinks toward the center, constricting and splitting the cell.

This whole process will accurately distribute the chromosomes of the parent cell to the two daughter cells after duplication.Because the chromosomes have the genetic material DNA, the stability of a series of sexual characteristics is maintained between parents and offspring.

It is manifested in the macroscopic level of the entire individual life of the frost giant, that is, the birth of tumor cysts from the armpit, and the birth of new babies in the tumor. "

Li Ang's narration was peaceful and quiet, but the scene he described was really horrifying, which made the faces of the Avengers members show unacceptable expressions.

"No, but frost giants do have husband and wife relationships."

Thor, the god of thunder, seemed to have grasped some life-saving straw, and hurriedly shouted: "I know this, Loki's father is the king of the frost giants of Jordanheim, Laufey.

He is my father's old enemy. He once led the frost giants in the protracted struggle against Asgard. I saw him last time! "

"Oh, Thor, you are still too young, thinking too simply, and ignoring a crucial issue."

Li Ang said with a smile: "If Ymir, the first generation of frost giant, can give birth to two frost giants, one male and one female, through mitosis, it means that each frost giant has the same genetic DNA as Ymir, which means It means that all frost giants are potentially hermaphrodites."

"what?"

Thor only felt that his world view collapsed in an instant, and his eyes on Loki suddenly became strange.

My brother, is a bisexual creature?
Tony Stark on the side hesitated for a moment, then said quietly: "During the differentiation of the embryo's organs, in the first few weeks of development, the organs are anatomically indistinguishable.

Until the sixth week of pregnancy, the primordial gonads with bidirectional gland drive appear, and the primordial gonads in this period can develop into both eggs and ovaries.

In the seventh week, the HY antigen gene on the male Y chromosome makes the HY antigen on the membrane surface of germ cells and gonadal ridge cells, making the gonadal cord grow into seminiferous tubules, and the mesenchyme becomes egg white interstitial cells and white membrane, while the primitive Germ cells differentiate into spermatids.

On the contrary, in women without HY antigen gene, the gonad cord becomes primordial follicle, mesenchyme becomes ovarian flesh, and primordial germ cells grow into oogonia. "

Speaking of this, Iron Man paused, looked at Leon, and said hesitantly: "Frost giants can reproduce not only through mitosis, but also through sexual relations. This is the first time I have heard of such a strange and diverse reproductive method. .”

(End of this chapter)