
第26章 小測1
Authored by Aristo Biology
Biology
7th - 9th Grade
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
每個DNA分子包含兩條多核苷酸鏈,互相纏繞形成 (a)______________ 結構。兩條多核苷酸鏈通過含氮鹼基之間的 (b)______________ 鍵連結在一起。
(a) 單螺旋;(b) 氫
(a) 雙螺旋;(b) 氫
(a) 雙螺旋;(b) 共價
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
基因是位於 (c)______________ 上的DNA片段。基因藉控制細胞製造的 (d)______________ 種類來控制身體特徵。
(c) 蛋白質;(d) 染色體
(c) 染色體;(d) 蛋白質
(c) 染色體;(d) 碳水化合物
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
每個基因可能有兩個或以上不同的形式,稱為等位基因。就同一基因而言,如果某生物有兩個不同的等位基因,該生物便稱為 (e)______________,而在這種情況下能夠表達出來的等位基因則屬 (f)______________。
(e) 純合子;(f) 顯性
(e) 純合子;(f) 隱性
(e) 雜合子;(f) 顯性
(e) 雜合子;(f) 隱性
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
豌豆植物花的顏色由一對等位基因控制。紫色花的等位基因 (F) 屬顯性,而白色花的等位基因 (f) 屬隱性。一株純種紫色花植株與一株純種白色花植株雜交。
遺傳學中,形容個體為「純種」的術語是甚麼?
純合的
雜合的
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
豌豆植物花的顏色由一對等位基因控制。紫色花的等位基因 (F) 屬顯性,而白色花的等位基因 (f) 屬隱性。一株純種紫色花植株與一株純種白色花植株雜交。
指出純種紫色花植株和純種白色花植株的基因型。
紫色花──FF;白色花──ff
紫色花──Ff;白色花──ff
紫色花──FF;白色花──Ff
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
豌豆植物花的顏色由一對等位基因控制。紫色花的等位基因 (F) 屬顯性,而白色花的等位基因 (f) 屬隱性。一株純種紫色花植株與一株純種白色花植株雜交。
指出F1代的基因型。
FF
Ff
ff
FF 或 ff
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
豌豆植物花的顏色由一對等位基因控制。紫色花的等位基因 (F) 屬顯性,而白色花的等位基因 (f) 屬隱性。一株純種紫色花植株與一株純種白色花植株雜交。F1代植株與一株純種白色花植株雜交。
F2代植株表現型的預期比率是甚麼?
紫色花:白色花 = 1 : 3
紫色花:白色花 = 3 : 1
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