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生物 高校生

至急お願いします!!答えてもらえず3回目の同じ質問なのですが明日テストなので教えてください( ; ; ) 問3なのですが図中の数字の求め方が解説に書いておらず、わからないので教えて欲しいです!!BからDに変わるのに1回の置換が起こったから1と書くところまでは分かったのです... 続きを読む

作図 論述 計算 350. 分子進化■次の文章を読み、 下の各問いに答えよ。 昔,有性生殖を行う2倍体の植物種Aが,同種の他の集団と地理的に隔離された絶海の 孤島に生育していた。 これら4種は、 長い年月を経てこの島ではA種からB種、C種,D種が生じた。 どの組み合わせにおいても生殖的隔離が確立していた。 ある研究者がA種から派生したB種、C種, D種の系統関係を調べるため, 葉緑体DNA のある遺伝子の塩基配列を比較し たところ, 表に示されるように6 か所の塩基(サイト)で変異がみら れた。さらにこの研究者は,島 内のすべてのA種個体について, 核DNA のある遺伝子を調べたと ころ、2種類の対立遺伝子がみつ かった。 その変異はコドンの3番 目にあり, どちらも同じアミノ 酸に対応していた。 下線部①のように単一の系統から,さまざまな環境に進出し, 多様化することを何 と呼ぶか。 2. 間 下線部②にみられるように, 生殖的隔離があるかないかを判断基準とした種を生物 学的種という。 生物学的種の概念をあてはめることが難しい生物が存在する理由を, 生 物の例を1つあげて100字以内で答えよ。 3.表のDNAの塩基配列の差異から、4種の分子系統樹を最節約法により描け。 なお、 A種を外群として用い, 系統樹上のどの部分でどのサイトに塩基の置換が起こったか記 入せよ。 種 表 4種の葉緑体DNA のある遺伝子の 変異がみられたサイト サイト A 種 B 種 C種 D 種 1 15. 生物の進化 393 3) 2 A G GO A G A C C C 4 G A C A ① A 5 T C T (c) 6 AKT T T 一方の対立遺伝子をα, 他方をβとする。 研究者が島内で対立 内での頻度を計

解決済み 回答数: 1
英語 高校生

(2.5.7)の訳し方がわかりません。 2 私たちの少ない時間を測定することに成功し宇宙の偉大な神秘を思い出させられた。 5 時間と変化は漏れた(リンクは結ぶとも訳せるのですか?) 7 私たちはある日、暗と光とそれぞれ名付けた としか訳せません

2 次の英文を読んで、以下の問いに答えなさい。 If you can read a clock, you can know the time of day. But (n)(knows/time itself / what is / no one / .) We cannot see it. We cannot touch it. We cannot hear it. We Ense tiniest parts of time, time remains one of the great mysteries of the universe. know it only by the way we mark its passing. (2)For all our success in measuring the 測定 One way of thinking about time is to imagine a World without time. There could be no movement, because time and movement cannot (3)(separate). A world without time could exist only (4)as long as there were no changes. (5)For time and change are linked. When something changes, you know time has passed. In the real world, changes never stop. Some changes happen only once in a while, like an eclipse of the moon. (A) 日 happen repeatedly, like the rising and setting of the Sun. People have always noted natural events that repeat themselves. When people began to count some events, they began to measure time. 彼ら自身 In early human history, the only changes that seemed (6)(repeat) themselves evenly were the movements of objects in the sky. The most easily seen result of these movements was the difference (B) light and darkness. The sun rose in the eastern sky, producing (C). It moved overhead and sank in the

解決済み 回答数: 1
英語 高校生

3枚目の問いの答えを教えてください。 よろしくお願い致します。

Radio Host: durlar aind Roger Ali: Radio Host: Roger Ali: Radio Host: Roger Ali: Radio Host: Roger Ali: Roger Ali: Radio Host: Roger Ali: Radio Host: Welcome back. As I mentioned before the break, Roger Ali is with us today to talk about artificial intelligence. Thank you for being here, Dr. Ali. Thank you for having me. I'll be honest with you. When I hear the words "artificial intelligence," the first thing I think of is the character HAL from the movie 2001: A Space Odyssey. ch tud goons bad Radio Host:ome In other words, the search engine draws conclusions about what we're looking for on the Internet. Roger Ali: Sure. Many people remember HAL. In the movie, he's the computer that controls the systems of a spacecraft. He also speaks with the people on the spacecraft. And he's not very happy when the people decide to turn off the computer. In the movie, HAL becomes very dangerous. That's right, but fortunately, artificial intelligence in the real world isn't like HAL. Well, that's good! Can you tell us what is happening in the field of AI? Many interesting things. For example, when we search for something on the Internet, the search results that we see are chosen carefully. The search engine has learned which websites are the most popular, the most reliable, and so on. This prevents us from seeing a lot of websites we're not really interested in. Tosa Right, so it only shows us the information it thinks we want to see, which includes go advertisements as well. We usually see only ads for products that the computer thinks we might want to buy. You said, "It thinks," but is the search engine really thinking? IST That depends on your definition of thinking. The search engine is capable of learning machine learning-and it does have knowledge. Knowledge about the Internet. Are learning and knowledge part of your definition of thinking? They're part of it, but human beings are capable of so much more. We have our senses hearing, smell, sight, touch, taste-and our emotions. We notice a lot about the world, and we use our judgment to make decisions. That's true, and most computer scientists know that we can't replace human beings with computers. We don't intend to make robots for every kind of job, either. That's just not practical.

回答募集中 回答数: 0