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生物 高中

想問這題的B為什麼是2/3

皆為隱性,結婚後第3代 不可能出現顯性,因此 第二代男生不應該會出現狀況。 第二代 為顯性遺傳 xx X 性聯顯性且基因位於Y染色体上, *** *x 代表正常男性成員 代表正常女性成員 第三代父傳子,則左邊第二世代男生應該 會出現症狀,因此此基因應位於 体染色体上 xx 7x4x4 (A)為一種隱性遺傳疾病(B)為一種顯性遺傳疾病(C)該基因位於X染色體上 (D)該基因位 代表罹患遺傳疾病之男性成員 代表罹患遺傳疾病之女性成員 xxxxx AB 於Y染色體上/(E)該基因位於體染色體上。 Aa CO 2.右圖為人類耳垂分離與緊貼的譜系,耳垂分離或緊貼為 CD 完全顯性遺傳,□表男性,○表女性,□○表婚配, CV Ad 传染色体遺傳 得分率 17% 〔97.學測] 甲 ZAa aa 庚 JAa aal 辛 O戊 Aa 黑色表耳垂緊貼,下列敘述哪些正確?(多選) 隱 丙○ (A)甲帶有一個隱性基因/(B)改帶隱性基因的機率為 2/3 (C)戊控制耳垂的基因必與乙相同(D)丁控制耳垂 的基因必與甲相同(E)控制耳垂的基因必與丙不同。 3.R 基因與 Y 基因各自獨立且顯性,若基因型 RrYY 和rrYy的兩個親代交配,理論上,下列 哪些敘述正確? (多選)2Rr: 1m,34. (A)每個親代各產生四種配子,比例為1:1:1:1(B)子代共有四種表現型,比例為9:3: 3:1 (C)子代兩對基因皆為同基因型的機率為1/4(D)子代兩對基因皆表現顯性性狀的木 率為1/2 (E)子代兩對基因皆表現隱性性狀的機率為1/2。 《分器 43%(97.指考

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英文 高中

想問這幾題 想問為什麼錯的不能用+對的為什麼能這樣用?🙏

英文考科 二、綜合測驗(占10分) +3 on 說明:第11.題至第20.題,每題1分。 bodzowbred no 第11.至15.題為題組 In 1956, African honeybees were introduced into Brazil to improve honey production in the tropical climate of South America. However, they started to mix with European honeybees already living there and produced a new kind of "Africanized" honeybees that are better at setting up hiyes and at reproducing than European bees. Keeping Africanized bees poses a challenge to beekeepers. Generally, beekeepers keep their bees in 11. wooden boxes, or hives. s. Afte After the worker bees fill a hive with honey, the beekeepers open the lid of the hive and blow a few puffs of thick, cool smoke into the hive to help calm 12. easier to collect the honey. the bees, 第 2 頁 共 10 頁 The problem with keeping Africanized bees is that they are more defensive than European bees. Even the slightest bump against the hive may 13. an alarm. A large quantity of smoke is needed to calm the bees. Two or three beekeepers may need to work together to safely harvest the honey. And they may need to wear heavier beekeeping suits even in hot, 14. weather. Beekeepers may also collect less honey from Africanized bee hives. European bees form search parties and work together to collect flower nectar from which honey is made, while Africanized bees usually work alone in search of flowers. Therefore, less nectar is brought back to Africanized bee hives. Africanized bees also spend less time storing honey but more time caring for young bees. That may be because they 15. in a tropical climate where not much honey is needed for food during the winter. (C) starved AB 11. (A) stacked door Lyc (B) stuffed obl (A) which make them (B) so that they are (C) thus it would be D (B) go off (C) call off (A) get off (D) staffed (D) making it DLL CC

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