37__

【名词&注释】

基因突变(gene mutation)、体细胞(somatic)、癌细胞(cancer cell)、南美洲(south america)、孟德尔遗传规律(mendelian genetic law)、碱基对(base pair)

[单选题]37__

A. opinion
B. impression
C. information
D. intention

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学习资料：

[单选题]______________________________________________________________________________Unabridged dictionaries contain as many as 500,000 entries and provide detailed definitions and extensive word histories (etymologies). These dictionaries, possibly in several volumes and mostly found in libraries, are excellent sources for scholarly inquiries. Unabridged dictionaries include the Oxford English Dictionary and the Random House Dictionary of the English Language.

A. Varieties of college dictionaries
B. Accessing dictionaries electronically
C. Elements under a word item
D. Complete editions of dictionaries
E. Using dictionaries for particular fields
F. F. Features of college dictionaries

[单选题]乙地所属气候类型分布范围最广的大洲是

A. 亚洲
B. 非洲
C. 欧洲
D. 南美洲

[单选题]基因突变是指DNA分子中发生的碱基对^{(base pair)}的替换、增添和缺失引起的基因结构改变，关于这种改变的说法正确的是 （ ）①若发生在配子形成过程中，将遵循孟德尔遗传规律^{(mendelian genetic law)}专递给后代

A. ②若发生在体细胞中，一定不能遗传
B. ③若发生在人的体细胞中有可能发展为癌细胞
C. ④都是外来因素影响引起的
D. ①②③④
E. ①③④
F. ①③
G. ②④

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