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Recombinant DNA Technology

Recombinant DNA Technology
Which of these restriction enzymes produce blunt ends?

XhoI
HindIII
SaII
EcoRV

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Recombinant DNA Technology
X-rays cause

None of these
heat
ionization of water in the cell
the formation of thymine dimers

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Recombinant DNA Technology
What enzyme forms covalent bonds between restriction fragments?

DNA helicase
DNA ligase
DNA primase
DNA polymerase

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Recombinant DNA Technology
Restriction enzymes

All of these
cut DNAs producing a blunt end
protect bacteria from viral infection
cut DNA in a staggered fashion

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Recombinant DNA Technology
The unpaired nucleotides produced by the action of restriction enzymes are referred to have

single strands
sticky ends
ligases
restriction fragments

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Recombinant DNA Technology
Which of the following is not true of small inbreeding populations?

Alleles may become fixed
There is an increased incidence of recessive diseases
They tend to loose genetic diversity
Mutation is increased

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