Which of the following is NOT a natural means of DNA recombination?
A) Viral infection B) Transformation in bacteria
C) PCR D) Sexual reproduction
C
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The ultimate source(s) of energy, on which all living organisms depend, is(are) __________
a. the sun b. autotrophs c. primary producers d. the first trophic level
Haplogroups consist of
A) sets of species that share a recent ancestor. B) the set of Y chromosomes in a population. C) groups of SNPs that are linked on a chromosome. D) preserved gametes, which are haploid.
What would be the phenotype of an int? mutant?
A) The phage would not be able to undergo the lytic cycle, but could lysogenize. B) Both lytic and lysogenic pathways would be inactivated. C) The phage would be able to enter the lytic cycle, but would not be able to lysogenize. D) The phage would be able to lysogenize but would not be able to be induced to resume the lytic cycle. E) The cell would build up high levels of repressor, so lysogeny would be maintained.
A dark blue shirt will absorb less light energy than a very light blue shirt.
a. true b. false