Exercise: Recombinant Dna Technology

Questions for: Recombinant Dna Technology

Which of the following is not true of small inbreeding populations?
A:
They tend to loose genetic diversity
B:
There is an increased incidence of recessive diseases
C:
Alleles may become fixed
D:
Mutation is increased
Answer: D
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The unpaired nucleotides produced by the action of restriction enzymes are referred to have
A:
sticky ends
B:
single strands
C:
restriction fragments
D:
ligases
Answer: A
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An expression vector
A:
always contains an origin of replication
B:
usually contains a gene that confers antibiotic resistance to the bacterial host
C:
always contains DNA segments for the regulation of mRNA production
D:
all of the above
Answer: D
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Plant transformation can be obtained by
A:
combining plant and animal cells in culture
B:
shooting DNA into plant cells with a gun
C:
using the E. coli bacterium to infect plant roots
D:
infecting plants with a tobacco mosaic virus
Answer: B
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Under which of the following conditions would population gene frequencies remain the same?
A:
Selection for homozygotes
B:
Small population size
C:
Active migration between groups
D:
Random mating
Answer: D
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