Which is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.

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#Question id: 18928

#Unit 13. Methods in Biology

With respect to nucleic acid hybridization, which, if any, of the following statements is false?

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#Question id: 18929

#Unit 13. Methods in Biology

The heterozygosity of any locus can be ascertained by

TLS Online TPP Program

#Question id: 18930

#Unit 13. Methods in Biology

The genomic DNA to be cloned is prepared by partial digestion with restriction endonucleases to obtain a suitable fragment size. Genomic fragments are then separated by using

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#Question id: 18936

#Unit 13. Methods in Biology

Cloning vectors with the transcription and translation signals needed for the regulated expression of a cloned gene are called 

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#Question id: 18937

#Unit 13. Methods in Biology

Cloning techniques can be used not only to overproduce proteins but to produce protein products altered, subtly or dramatically, from their native forms. Specific amino acids may be replaced individually by 

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#Question id: 18938

#Unit 13. Methods in Biology

If the sequence of at least the end portions of a DNA segment of interest is known, the number of copies of that DNA segment can be hugely amplified with the