Microbial Recombination and Gene Transfer
A microarray differs from a gene fusion in that, it

carries DNA segments from many different genes
gives direct measurement of mRNA level
is not constructed by cloning
All of these

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Microbial Recombination and Gene Transfer
The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid

usually has a transposon inserted into it
transfers both strands of the plasmid DNA
transfers antibiotic resistance genes
carries genes encoding the mating apparatus

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Microbial Recombination and Gene Transfer
The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will

allow to monitor the expression of all genes with a promoter similar in sequence to Px
have the promoter of lacZ or some other reporter gene
give the same information as from a microarray
have Px but not the rest of the X coding region

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