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英語 高校生

共通語補充問題です。教えてください🙇‍♀️

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生物 高校生

問一で、集団Zの個体数に2をかける理由はなぜですか?

2 1 30 解答番号 第1問 次の文章を読み,下の間い(問1~3)に答えよ。(配点 11) ある植物の花の色には赤色,桃色, 白色があり, それぞれの花色は対立遺伝子 R とrによって支配されている。対立遺伝子Rとrには優性の法則が成り立たず, R を赤色の遺伝子,rを白色の遺伝子とすると,遺伝子型 Rr の個体の花の色は桃色 となる。野外の集団から花をつけていない100個体本を,採集しやすいところに生え ていたものを中心に採集して研究室に持ち帰った。これを集団Zとする。これらの 植物を育てた結果,すべての個体が花を咲かせ,花色が赤色の個体(RR)が 56個体, 桃色の個体(Rr)が28個体,白色の個体(rr)が 16個体であった。 問1 集団Zにおける, 遺伝子rの遺伝子頻度として最も適当なものを,次の0~ ののうちから一つ選べ。 1 0 0.1 @ 0.2 0.3 の 0.4 問2 集団Zで任意に交配が行われて次世代(F」集団とする)がつくられる過程で はハーディ·ワインベルグの法則が成り立つとすると, Fi集団では,花色が 赤色の個体,桃色の個体,白色の個体の比はどのようになると考えられるか。 最も適当なものを, 次の①~④のうちから一つ選べ。 赤色の個体:桃色の個体:白色の個体= 2 0 9:12:4 ② 16:8:1 ③ 49:42:9 の 81:18:1 56 c

解決済み 回答数: 1