Q. Which of the statement is true for pBR322?

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Q. If a plasmid is having two antibiotic resistant genes, say ampicillin resistant and chloramphenicol resistant. If the plasmid grows in ampicillin containing medium but not in chloramphenicol, what can be concluded?

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Q. If high copy number is there, the replication is called as ______ and if low copy number is there the replication is called as ______

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Q. Chloramphenicol amplification is carried out in various plasmids. Which of the statement is incorrect for it?

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Q. The phenomenon of not allowing the recombinants to escape into the environment is termed as __________

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Q. How will we choose which transformation method is to be used?

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Q. The cell in which the recombinant molecules are propagated is termed as __________

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Q. Some mutations are present which assist the uptake of DNA. Which of the statement is incorrect for it?

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Q. Endogenous DNA-degrading system is not essential in determining transformation efficiency.

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Q. Which of the following is true for K strain for E. coli?

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Q. Methylation dependent restriction system (MDRS) are included in which class of restriction enzymes?

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Q. Choose the incorrect statement with respect to dam and dcm genes?

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Q. How many recombination systems are present in E. coli?

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Q. Disablement is also done in plasmids. Choose the correct statement.

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Q. endA mutation is often induced in host molecules. Choose the correct statement.

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Q. lacZΔM15 represents __________

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Q. The correct statement with respect to lacIq is __________

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Q. There are various methods to distinguish whether a colony contains a recombinant or not. One such method is __________

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Q. At times it is observed that non-recombinant plasmids are more than that of recombinant plasmids. Choose the correct statement in regard to it.

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Q. Alkaline Phosphatase is used at times and the vector is treated with it. Choose the incorrect statement.

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