Re: [普生] 請問一下

看板TransBioChem作者hurryken (轉學毀滅倒數)時間19年前 (2005/04/27 22:55)推噓6(6推 0噓 3→)

留言9則, 4人參與討論串2/3 (看更多)

補充一下解答解錯方向請不要痛罵謝謝^^" ※ 引述《smallmin (小名)》之銘言： : 1. In the course of evolution of eukaryotic cell,some mitochondrial DNA was : transferred to? : a. the host cell's chloroplast : b. bacterical cell : c. the host cell's nucleus : d. the host cell's plasma membrane : e. a plasmid 真核生物的DNA序列跟粒線體的DNA序列造出來的蛋白質為什麼會不一樣呢? 這令人納悶真核生物跟粒線體的DNA起源是不是相同的! 馬上聯想到的就是在演化啟源那部份一開始有提到的內共生假說細菌在原生質膜摺疊以後不小心吞下了粒線體而後可能又不小心吞下葉綠體逐漸演變成現在的光合自營真核生物!! 所以我覺得答案是(B) : 2. A plant that is self-incompatiable has a genotype of S5S9 for the S-locus. : It receives pollen from a plant that is S3S9. Which of the following is : most likely to occur? : a. all of the pollen will germinate, forming pollen tubes : b. about half of the pollen will generate : c. none of the pollen will generate : d. fertilization will occur in about half of the flower of the pollinated : plants : e. pollen from the S3S9 plant will secrete ribonuclease that destorys : epidermal cells of the S5S9 stigma 我在想說你是不是看黃志清的書因為我也是看黃志清的書的說但是上面沒有提到這個建議你回去翻CAMPBELL 我也是回去翻才知道有這個的大概說一下就是植物有防衛同一株的配子可以互相結合的機制有這種機制的植物叫"self-incompatiable"的植物題目問你一個S5S9 跟一個S3S9結合會怎樣? 解法是因為S9是相同的我記得是後來引發植物生理反應無法進入與卵核結合但是S5跟S3不同所以可以答案是(B) 一半 : 3. Which element is always existing as a freeion ion and not conjugated with : any other organic molecules? : a. Ca b. K c. P d.Mg e.Mn 以更正為正解真不虧是中央的><

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mtdas

140.115.17.102 04/28, , 1^F

140.115.17.102 04/28, 1^F

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hurryken

220.135.118.165 04/28, , 2^F

220.135.118.165 04/28, 2^F

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mtdas

140.115.17.102 04/28, , 3^F

140.115.17.102 04/28, 3^F