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生物 高校生

黒く囲んでる320は、どう計算したら320になるのか教えて欲しいです😓

参考抗体の多様性 多様な抗原に対しては,その抗原それぞれに対応する可変部をもった抗体 が必要となる。抗体の遺伝子の数は必要な抗体の種類よりきわめて少ないが、 抗体の可変部のアミノ酸配列を指定している遺伝子が次のようなしくみに よって多様化されることで, 多種類の抗体がつくられている。 同じ個体の体細胞は, 同じゲノムをもっている。しかし, B細胞とT細胞 では,分化する際に, 特定の遺伝子に関して遺伝子の“連結” による"再編成" が行われる。成熟したB細胞は, 1個につき1種類の可変部をもった免疫グ ロブリンをつくるが,例えばヒトの場合, 未分化なB細胞にある免疫グロブ リンのH鎖の遺伝子領域の中には, 可変部の遺伝子である V遺伝子が 40種 類,D遺伝子が 25 種類,J遺伝子が6種類, そして定常部の遺伝子が並んで 5 variable (可変) diversity (多様) いる。B細胞が成熟する間に,V, D, J遺伝子からそれぞれ1つずつ選ばれ て“連結”され, “再編成”される(図I)。すると, このH鎖の可変部の遺 joining (接続) 伝子の組み合わせは 40 × 25 ×6=6000 通りになる。一方, L鎖の可変部に はH鎖とは異なるV遺伝子とJ遺伝子があり, 同様の“連結” と“再編成” によって320通りの組み合わせが生じる。そのため, H鎖とL鎖とからなる 抗体の可変部の遺伝子の組み合わせは, 192万通りにもなる。 このしくみは,1977年に利根川進によって解明され, この功績によって, 利根川は 1987 年にノーベル生理学·医学賞を受賞した。 つ H鎖の遺伝子 V断片 D断片 J断片 定常部 未分化なB細胞 分化 V1 V2 v39 連結·再編成された遺伝子 成熟したB細胞 合成 |V1 V2 函J5-06- 免疫グロブリン V2 DSJ5 H鎖 免疫グロブリン 本合成 成熟したB細胞 連結·再編成 J-ロー された遺伝子 L鎖 L鎖 本分化 未分化なB細胞 H--■■ ロ-ロ 定常部 L鎖の遺伝子 V断片 J断片 免疫グロプリン D図I 抗体の多様性のしくみ

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TOEIC・英語 大学生・専門学校生・社会人

読み方がわかりませ?

/18 30秒) 1 次の文が下線部Oと同じ意味になるように、( )に適切な語を入れなさい。 (完着8点) mo ( ) ( ax) for 40 years in which creative writing ( at the talent ication, can is it that a 2(0)に入れるのに最も適切な語句をa~dの中から選び, 記号で答えなさい。 (8点) a. had b. had been C. has d. have vears, has 3( ③ )に入れるのに最も適切な語をa~dの中から選び, 記号で答えなさい。 (8点) Creative a. guilty b./ successful suitable d. wrong C. v, was to writers, 4 第1~3段落の内容と一致するものをa~eの中から2つ選び, 記号で答えなさい。(完答10点) rse. i bodeinn d w 1 The talent needed to write a novelmust be developed in university courses. a. y those ut they -hieved b. If creative writing not really a skill that can be taught in university courses, one cannot explain how the UEA's course has produced so many successful writers. About 40 years ago, the creative writing course at UEA was established to C to be train future writers, but now its original purpose has totally changed. d. Some in the literary world were doubtful of the UEA's creative writing course, ed as claiming that the craft of writing fiction should not be taught at universities. e. The creative writing course at UEA is so popular that every student who applies is accepted to the course. ain's most nual 5 第4~6段落の内容と一致するものを a~eの中から2つ選び, 記号で答えなさい。(完答10点) not a. Rose Tremain, a former student of UEA, is writinga success story about the DSd beti creative writing course. m re b. Those who achieve excellent grades in UEA's course are promised to have 1. their works published. S c. The author of The Underground Man, Mick Jackson, feels that UEA's course was useful to him in his career as a writer. d. Students of the creative writing course at UEA come together to talk about strengths and weaknesses of each other's writing. e. Mick Jackson describes the education system in the creative writing course as a “support mechanism” because its program provides the opportunity to work on his own. 解答·解説集 p.16 か を世料する |重要単語·熟語チェック 辞書で意味を確認しよう 1. the case /6a kérs/ 圏 4. acknowledge /akná:lid3/画® 2.a succession of ~ 5.criticize /kritasàrz/■ ® 分の様にする 6. pursuit /pars(j)ú:t/図 3. take credit for ~

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英語 高校生

教えて貰えませんか?

9 The Magic of Music 音楽の不思議なカ The history of music is very old. People alt over the world have always loved t, Is there anyone who doesn't like music? Probably the answer is no. Music is the most necessary things in life, Maybe people can't live without music. Do antmas and plants like music, too? Do they understand music? 2 One day Mrs. Evans read a very interesting story in the newspaper. A ** university professor found out that her plants became stronger when music was played for them. At first she thought that ., it was a joke, but she wanted to ury it herself. She built two rooms in the garden and put the same kind of vegetables in both rooms, The temperature of the rooms was the same and both of them were very 10 quiet. Music was played in one room. The other room was silent. Surprised to find that the next day the vegetables that she played music for became 1 E 1) She was 3) taller than the ones in the silent room. 3 In the United States, there was a farmer who kept many c0ws. The farmer was very interested in music, When he stayed at home, he always listened to music on the radio. One day he took his radio to the farm. When he was *milking his the radio was playing beautiful music. He found that the cows gave more milk "han the reason, and three months later he 15 COWS。 usual on that day, He wanted to know 4) learned that he could get more milk when the cows listened to beautiful, quiet musi。 4 Today many scientists say that animals and plants also enjoy music. Like ne 20 animals and plants need beautifu! music, But they don't like big, **terrible noises Scientists **complain about noise *"pollution. It damages animals, plants, and people They say that we must think about many kinds of noises that we are making every 5) 313 words) day.

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TOEIC・英語 大学生・専門学校生・社会人

日本人大学生が留学することについてどう思うか?というquestionに対するライティングです。 英語の部分が自分が書いたやつです。 添削等ありましたらよろしくお願いします🙇‍♀️

I think that university students should.study abrood is very good. I have two reasons. First, study abroad is useful experience for future. For example, of when you are walkin street, foreigners are in trouble. You will be able to help their. Second, you will be able to communication with more and more people in the world. Now, the number those who use SNS such as instagram and twitter is very increasing. If you can understand about abroad, you will be enjoy communication with people around the world. カメラ入力 会話 音声文字変換 日本語 大学生はすべきだと思います。私には2つの 理由があります。 まず、留学は将来に役立つ 経験です。たとえば、あなたが通りを歩いて いるとき、外国人は困っています。 あなたは 彼らを助けることができるでしょう。 第二 に、あなたは世界中のますます多くの人々と コミュニケーションをとることができるよう になります。現在、インスタグラムやツイッ ターなどのSNSを利用する人が増えていま す。海外について理解できれば、世界中の 人々とのコミュニケーションを楽しむことが できます。

未解決 回答数: 1
英語 中学生

他1つでも分かるところあればお願いします😭

Rules in the School Library Grammar Focus Time and Place, Inversion We use phrases with prepositions and adverbs when we describe time and place. They are usually placed at the end of a clause or sentence. However, some emphatic expressions should be placed at the beginning of aclause or sentence and need to have an unusual structure, called inversion. Choose a phrase from the box below to complete each of the following sentences. Use a capital letter to begin the first word of each sentence. 1. The blueprints for the new buildingare on hold ( 2. A radical change in the formula fora new drug will take place ( 3. The scientific program has aired continuously ( ) did scientists decide that air, earth and fire were not really elements at all. 5. The Earth pulls on all objects with a force of gravity ( L). 6. My adviser will have been teaching for forty years ( 7. Most of the undergraduate students in the Faculty of Global Studies study abroad ( 8. All the classes during the first period are required to start ( ) were wriggling angleworms. f 10. Lithium batteries are prohibited to be sent ( a. by air in many countries b. by the end of the school year at the beginning of the year C。 d. until the end of October e. not until the eighteenth century f. since April 5, 2009, on the QBS Television Network g. during their second year h. under piles of leaves i. downward, that is, toward the center of the Earth on time, at 9:00 in the morning j.

未解決 回答数: 2