本题目来源于试卷: Unity and Diversity A.4 Cell Structure，类别为 IB生物学
[单选题]
What provides evidence that0f v.nujr7d 9e/mru5 41euwg j all lil35 .mejrv3x/ i9acqyfe on Earth evolved from the same population of celjy9qr .x53ciamv 3le/ls?
A. Eukaryotic cells evolved from prokaryotic cells.
B. Both mitochondria and prokaryotes have a cell wall.
C. Both eukaryotes and bacteria contain histones.
D. The genetic code is universal.
参考答案: D
本题详细解析:
All 64 codons of the genetic code are present b :.c2:,deq,bg *apuq nioje6 in all organisms, apart from minor variations indicating that all life evolved from the samiqpq2n.e ,b:cdj b*ag :,6uoe e original cells (Choice D).Eukaryotic cells evolved from prokaryotic cells (Choice A) is incorrect as this is the endosymbiotic theory. Choice B is incorrect as mitochondria do not have a cell wall. Choice C is incorrect as bacteria do not have histones.
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