Immortality as a Cat

[The protagonist is born with endless longevity. With some additional panels, within two years he transformed into a beast and became a cat. Knowing that the person doesn't like you, you jump and pee on the other person's feet. That mentally retarded body is not afraid of being kicked to death. It is almost impossible to control the animalistic instinct. To put it simply, the dregs of man and beast take over. Not a single benefit was gained.

Isn't this a farming story about a village girl who used to farm and lead her family to make a fortune? Now the heroine is just replaced by a male calico cat.

Calico male cat infertility🙂

The protagonist traveled through time and became a cat, but it turned out that he really only had the IQ of a cat. He had to arrest people on the spot, and his family members were almost hacked to death. He couldn't wait until night to set fire to him?

1 As a cat, it's okay to scratch people when they're unhappy with them. The problem is that other people are coming soon and you have to fight them. Are you stupid? 2 As a cat with human consciousness, you have to write emotional scenes with the cat lady and the cat siblings. Then, there is no consideration for them in the whole plot. The little white leg broke and he couldn't do anything. He knew that ordinary cats have a short lifespan and he couldn't do anything. He is a scumbag 3 As a cat, Cat Girl has no regard for her cubs and offspring. Instead, she takes good care of everyone in the owner's family. In the entire plot, I only saw cat pets that are loyal to their owners. Your identity is a cat 4 Since it is the world of immortality, you must be able to cultivate immortality. You just rely on the system to eat and wait for death all day long, and then watch the people or cats around you die one by one? 5 Immortal Shen is also very vicious. He is pursued by other girls over and over again, always keeping silent, and then when he finally leaves, he says there is a difference between immortals and mortals

I took a quick look at it. Not to mention anything else, did Shen Yuzhou practice the immortal method? Lan Ciyue, a girl, chases a boy, and when she gets old, Shen Yuzhou refuses or accepts him. Isn't it disgusting? Before leaving, he put a bell on the cat and said he would adopt it as a mountain guardian beast. You make me sick. There is also the policeman who broke a little white cat's leg and died early due to physical disability. He waited for several years to get revenge, but he knocked his leg and his head was bloody, and he became a fairy. Isn't this plot disgusting? The passive talent I was given, gathers good luck, only brings good luck to people, and is not subject to subjective control. It will not be given to me if it is malicious, and it will always be good to me. Isn't this okay? After reading this, I just want to say one thing, are you a schizophrenic? If anyone treats you badly, just stick up and serve them.

Isn't that pure tj? Is the author implying something?

The writing is too childish and embarrassing😳😳😳😳

Hello, author, I will upload your book and update it next door. Readers like it very much and the income is also very objective. But recently, readers have been saying that there are few updates and have been urging them. Here are five recommendation votes. I hope you will update more every day, so as not to affect my making money, and don't be disrespectful to me.

Abstract: Calico Cat has attracted much attention due to its unique black, orange and white coat colors. The genetic correlation between gender and coat color is a classic example in mammalian genetics. The vast majority of calico cats are female, and male individuals are extremely rare, with a probability of about one in 30,000. This article systematically demonstrates the genetic mechanism of universal infertility in male calico cats from the perspective of sex chromosome genetics and reproductive biology, and discusses the special circumstances of a very small number of fertile cases. Studies have shown that the infertility of male calico cats is closely related to their XXY sex chromosome composition (Klinefelter syndrome). Although a few chimeric cases are occasionally reported to be fertile, they cannot change the biological conclusion of the overall infertility of this group. 1. The genetic basis of calico coat color The inheritance of cat coat color follows Mendel's law, in which the genes determining black and orange are located on the X chromosome. There are two allelic forms of this gene: the O gene expresses orange, and the o gene expresses black. Female cats have two X chromosomes (XX). If the two X chromosomes carry O and o alleles respectively, then in the early stages of embryonic development, the two X chromosomes will be randomly inactivated (Lyonization phenomenon) - the X chromosome carrying O in some cells is inactivated, appearing black; in other cells, the X chromosome carrying o is inactivated, appearing orange. The two cell clones are staggered on the skin, forming a yellow and black tortoiseshell color, and then superimposed on white patches determined by the incompletely dominant gene S on the autosomal chromosome, ultimately forming a calico cat. The normal sex chromosome configuration of male cats is XY, with only one X chromosome, so they can only express one of orange or black, and cannot display both colors at the same time. It can be seen that the appearance of calico coat color must be based on two X chromosomes. 2. The formation mechanism of male calico cats Since a normal male (XY) cannot become a calico cat, the existence of male calico cats must be due to abnormalities in sex chromosomes. There are two main formation mechanisms: First, XXY sex chromosome syndrome (Klinefelter syndrome). This is the most common cause, that is, the sex chromosome configuration of male calico cats is 47, XXY, which means that they have one more X chromosome than normal males. This extra X chromosome enables the individual to have two X chromosomes while possessing a Y chromosome (which determines male sex), meeting the genetic conditions for the formation of calico coat color. This condition is highly genetically homologous to Klinefelter syndrome in humans. Second, Chimera. A very small number of male calico cats develop from the fusion of cells from two embryos, and there is a mixture of XY/XX cell lines in the body. This chimeric state can also allow an individual to be genetically male (XY cell line exists) and at the same time have the coat color diversity conferred by two X chromosomes. 3. The genetic mechanism of infertility in male calico cats The infertility of male calico cats is rooted in the destruction of spermatogenesis caused by their abnormal sex chromosome composition. In XXY individuals, the presence of three sex chromosomes prevents the formation of normal bivalent pairing during meiosis, thus hindering the normal production of sperm. Testicular histopathological changes are also comparable to those seen in human patients with XXY Klinefelter syndrome. In addition, XXY male calico cats are often accompanied by feminized characteristics and abnormal development of reproductive organs, which further aggravates their infertility. Therefore, the vast majority of XXY male calico cats are completely sterile. For chimeric male calico cats, their fertility depends on the proportion of normal XY cell lines in testicular tissue. If XY cells are dominant in the testes, some spermatogenic function may be retained; if XX cell lines are dominant, infertility will also be faced. 4. Analysis of very few fertile cases Although the general rule points to infertility, there are indeed very few reports of fertile male calico cats in the animal world. These cases are usually of the mosaic type - when the proportion of XY cell lineages in the testicular tissue is high enough, spermatogenesis is maintained. However, it needs to be emphasized that: first, this type of fertile individual is extremely rare and is a statistical outlier; second, even if it is fertile, its male three-flowered trait is difficult to pass on to future generations. Because whether their offspring can display tricolor depends on whether they inherit sufficient genetic conditions, and the transmission efficiency of abnormal chromosome configurations in meiosis is extremely low. 5. Conclusion In summary, the question of whether male calico cats are fertile should be answered from the group level and the individual level. From a population perspective, the vast majority of male calico cats are generally infertile due to spermatogenesis disorders due to XXY sex chromosome abnormalities (Klinefelter syndrome). From an individual level, a very small number of chimeric male calico cats may retain some reproductive functions due to the presence of a sufficient proportion of normal XY cell lines in the testicles, but these cases cannot change the biological conclusion of overall infertility in this group. The male calico cat is not only a classic example of mammalian sex chromosome inheritance, but also a typical case of reproductive disorders caused by chromosomal abnormalities. Its research has important scientific value for understanding sex chromosome evolution and reproductive biology. References [1] Calico cat. Baidu Encyclopedia [2] Calico cat. Baidu Encyclopedia [3] Popular Science China. Are all calico cats female? There are also male calico cats, but they are rare [4] Merck Veterinary Manual. Calico and Black and Orange Tortoiseshell Cats [5] AVMA Journals. XXY-complement in male calico cats Making it up😜