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理科 中学生

中3理科、遺伝のところです。 (2)の解説に、(4+3+3):(1+1)…という式があって… この式はどうゆう意味ですか?教えてください、お願いします🤲

2 エンドウは,種子の形が丸の形質(A) はしわの形 質(a)に対して顕性で,子葉が黄色の形質(B)は子 葉が緑色の形質(b)に対して顕性である。 図のよう に丸・黄の種子の個体 (遺伝子としてAABBをもつ) と、しわ・緑の種子の個体(遺伝子としてaabbをもつ) を両親として交配すると, 得られた種子 ( 1代目の 子孫)の形質はすべて, 丸・黄であった。 さらに1代 目の子孫どうしを交配し、得られた種子 (2代目の子孫)の形質とその数の比は,丸・黄:丸・緑: しわ 黄 しわ 緑 = 9:3:3:1となった。 〈久留米大附設〉 丸・緑 しわ・黄 しわ・緑 1 9: 3 :3 (1) 2代目の子孫のうち, 「丸 緑」の個体がもつ遺伝子の種類とその比はどのようになると考えら れるか。 「AABB: aabb=1:1」のように表せ。 (2) 2代目の子孫のうち, すべての 「丸 緑」の個体を自家受粉させたとき, 3代目の子孫にはどの ような形質の種子がどのような比で生じると考えられるか。 (1) の結果をもとにして「丸・黄:し わ・緑=1:1」のように表せ。 (3) (2)で生じた3代目の子孫がもつ遺伝子の種類とその比はどのようになると考えられるか。 (1) の ように表せ。 · 親 1代目の 子孫 2代目の 子孫 生じた種子 の数の比 丸・黄 丸・黄 丸・黄 しわ・緑 1代目の子孫 どうしの交配

回答募集中 回答数: 0
英語 中学生

教えてください🙏

2 a 次の各組の文がほぼ同じ内容を表すように, Because there were so many cars in the parking area, we couldn't park our car. に適する語を書きなさい。 6cm (愛光) many cars in the parking area for us (1){ There were any space to park our car. He became Mary's husband when he was 26 years old. (錦城) of 26. He Mary at the (慶悪義塾) May I sit next to you? next to you? me Do you (実践学園) Don't play soccer here. play soccer here. You (清風南海) The picture which Paul drew is beautiful. Paul is beautiful. The picture (土佐) Tell me your date of birth. Tell me when (市川) My brother doesn't get up early in the morning. My brother isn't an (早稲田実業) Please tell me the way to the post office. I get to the post office? (土佐塾) Missing the bus means waiting for half an hour. miss the bus, you will wait for half an hour. に適する語を書きなさい。 4 次の各組の文がほぼ同じ内容を表すように, Ken is the naughtiest boy in his class. (灘) in his class is naughtier than Ken. This building is about 30 years old. (高知学芸) This building built about 30 years What is the English for this fish? (大阪教育大附 .平野) What do you this fish English? They are looking for the house whose door is red. (中央大杉並) They are looking for the house The workers are repairing the bridge. red door. (久留米大附設) The bridge by the workers. Why did you become so angry yesterday? (洛南) What so angry yesterday? Andy plays the guitar well. (青雲) Andy is playing the guitar. Shun is the fastest runner in 8) The student my class. (京都教育大附) the fastest in my class is Shun. Many people in my class don't know the new teacher. (中央大附) The new teacher to many people in my class.

未解決 回答数: 1
英語 中学生

1.4.7.12.16.18を教えてください

次の各組の文がほぼ同じ内容になるように, に適する語を書きなさい。 1 〈久留米大学附設〉 O Iknow Please tell me your birthday. this book. 土佐塾) 2 〈同志社) 3 you were 6 Please tell me 学附属) 4 〈関西学院) 5 O Do you know 志社) 〈筑波大学附属駅駒場) 6 your mother is! 6 What a 7 〈土佐塾) 8 6 Father came home about hour ago. 6 These are his books. の These books are 学院) s me 〈関西大学第一〉 9 O 10 学院) (山手学院) 11 to me. m 9ania boenog overd 6 He 12 〈明治大学付属中野》 MC 去装) last summer. 13 6 Mary 〈筑波大学附属駒場) H0a Three hundred years have passed since this temple was built. 14 three hundred years 6 This temple 15 naY.anM (久留米大学附設) =院) 口 00 Did you sleep well last night? 16 last night? 0ot asw Did you have a bonis de 〈慶塵義塾〉 17 口m Our teacher plays the violin well. playing the violin. 18 0 Our teacher is qa9da at tnd 〈国学院栃木〉 19 口20 He did not go to school yesterday. from school yesterday.dmodw Ilet donaro 6 He 〈青雲》 20 口BO He is a very good speaker of English. he speaks English! ovinb ot dguo9 bnil erow 21 0 How (慶態義塾女子) 22 0O Neither John nor Mary went to the party. dois denod 6 John didn't go to the party, and Mary didn't, 〈慶塵義塾) 23 in New York, I met him several times. oO 5 While I was in New York. I met him several times. 24 (滝) my 試 b Your plan is a little different from mine. your plan and mine. 〈滝) 6 There is a small difference help, I won't be able to do the work. (郁文館) to the post office.

解決済み 回答数: 2