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How many deletion variations of GAL1 promoter are there?

(a) 1

(b) 2

(c) 3

(d) 4

The question was posed to me during an interview for a job.

My enquiry is from YAC and Expression Systems topic in section Using Other Organisms of Genetic Engineering

1 Answer

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Best answer
Right option is (b) 2

For explanation: In GAL1 promoter, there are 2 deletion variations present. These deletion variations are known as GALL and GALS.

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