本题目来源于试卷: Unity and Diversity A.6 Diversity of Organisms，类别为 IB生物学
[单选题]
Which of the followinq n/ld:i o1 :g4 ;nqdjcqwo3g9gpb)g.mtwh jrmp j,5 ,. statement(s) is/are true for the genome?
I. The genome is all the genetic information of an organism.
II. Genomes within a species are identical in size.
III. Genomes within a species vary in base sequence.
A. I only
B. I and II only
C. I and III only
D. I, II and III
参考答案: C
本题详细解析:
The genome is all the genetic information ius4 n 0( fw:exg7ypy/wn an organism (Statement I). The base sequence can vary within a species due to single-nucleotide polymorphism (Statement III). 0:xusg(7ewyn /4f pyw Therefore, Choice C is correct as it contains both true statements.
Choice A is incorrect as it only includes one true statement. The size of the genome within a species can vary within a species, this can be due to mutations, such as insertions and deletions, so Statement II is not true. Choices B and D are, therefore, incorrect.
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