Self-introduction

 Hello! My name's Kuya Matsunaga. I'm from Hiroshima. I want everyone to know me through this introduction. 

  I'm majoring in biology to know a lot of things about life. These days, I'm also interested in physics. I think that the subjects maybe enable us to get more information and understanding about life. 

 My hobby is reading. One of the most interesting thing in the college is reading in there library. There are a lot of interesting books in the library. We can read them for free so I'll go to the library as many times as possible.

  These days, I have  many things which I want to do, reading, painting, learning, and part-time job. I have many books which I have not read yet. I want to study philosophy, psychology, physics, biology, and so on. I love painting as illustration. I want to work to know the society. However, I don't have enough time to do all of them. I want more free time.

 In the college, I want to be good English speaker, writer, listener, and reader to communicate with foreign people and to be an international great biologist. That's why I' m going to practice English.

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Gene-editing Enables Us to Create Single Sex Mice

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      Hi everyone, today I'd like to tell you about a recent study to create only female mice. Gene-editing based on CRISPER-Cas9 enables us to do it. Thanks to the technique, a lot of lives may be saved.      Most mammals' sex is decided by XY-chromosomes. If they have two X-chromosomes, they are female. If they have one X-chromosome and one Y-chromosome, they are male. To control their sex, scientists put specific genes on each chromosome. When both edited them are in the same cell, the cell can't survive.       The specific genes are important for CRISPER-Cas9. One gene makes an enzyme, this cuts DNA at a specific area. The other gene is transcripted as a guide-RNA, the RNA takes the enzyme to a vital gene. When they fertilize and are in the same cell, they cut an important gene and kill the cell. So only the cell which has edited X and Y-chromosomes can't survive and the male isn't born.      The technique will be impo...
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Why All Pokemon Are Born Of An Egg?

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Hi everyone. Today, I'd like to talk about Pokemon. Some days ago, new Pokemon games were released in Japan. When I heard that I had a question, why they were born of eggs? In the game, most Pokemon yield eggs dislike real animals. To solve the question, I researched on the Internet and considered it by myself.  Through that, I got an answer, all Pokemon may be offspring of one kind of Pokemon. The Pokemon is Mew, the Pokemon has extinct. Mew has all genetics of Pokemon, which means  Mew may yield an egg. If all Pokemon evolved from Mew, it is natural that most Pokemon lay eggs. However, people have never found their eggs in the game. 
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