本题目来源于试卷: SL/HL Topic D1.3 Mutation and gene editing，类别为 IB生物学
[单选题]
4. Single nucleotide p)*yds.88oy8oof alc- o3 zp naolymorphisms (SNPs) are a form of muy7 ijb4cb fe5q; 6wz-4c. y0cms3ujzotation. Which of the follow scyc zc7-jw 4;j6bizfq0b53ym4eou.ing is the best description of an SNP in the DNA base sequence?
A. A substitution of a single base.
B. The addition of a single base.
C. A change in a polypeptide sequence.
D. The deletion of a DNA base.
参考答案: A
本题详细解析:
暂无
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