题目内容

We can adopt efficient biocontainment approaches against an accidental release of genetically engineered microbes into the environment, this strategy is called _____________.

A. genetic safeguards
B. genetic firewall
C. genetic lock
DNA watermarks or barcodes

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World's first artificial life in the form of a protocell is called _________.

A. Syn1.0
B. Sym1.0
C. Dyn1.0
D. Sin1.0

In ______, James J. Collins et al. at Massachusetts Institute of Technology successfully synthesized a genetic toggle switch in E. coli.

A. 1995
B. 1998
C. 2000
D. 2003

In 2016, scientists from the John Craig Venter Institute in Maryland of the US created JCV-syn3.0 with a 531-kb genome of _____ genes.

A. 273
B. 373
C. 473
D. 573

In 2000, Michael B. Elowitz and Stanislas Leibler atPrinceton University successfully synthesized a oscillatory network of transcriptional regulators using ___ transcriptional repressor systems in E. coli.

A. 2
B. 3
C. 4
D. 5

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