國七生物下-CH1~CH2段考複習5
Quiz
•
Biology
•
7th Grade
•
Practice Problem
•
Hard
東茂 葉
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
某生物的體細胞有6條染色體,其卵細胞中的染色體情況為何?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
果蠅複眼細胞含有8條2n)染色體,請問雌果蠅卵的染色體數目及形式為何?
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
水螅的出芽生殖、渦蟲的斷裂生殖、變形蟲的分裂生殖、人類的試管嬰兒。以上各種生殖方式,具有幾項相同特點?未涉及配子結合;?涉及成對的染色體分離;?未涉及減數分裂?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
老王有甲、乙兩株不同性狀的蕃茄。他利用甲植株的花粉使乙植株受精,得到種子後,再播種長成丙植株。下列相關斜述。何者正確?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若以T代表玉米的高莖遺傳因子,t代表玉米的矮莖遺傳因子。將一棵不知基因型的高莖玉米與一棵矮莖玉米交配,若產生400棵子代玉米,則高莖最多可能有x棵,最少可能有y棵,試問x和y分別為多少?
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小明沒有美人尖,基因型為aa,但他的媽媽有美人尖,基因型為Aa;爸爸沒有美人尖,基因型為aa,如今小明的媽媽又懷孕了,他很希望媽媽能生一個有美人尖的妹妹,其機率為何?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
有關人類卵細胞中所含有的染色體敘述,下列何者正確?
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