Which of the following is NOT a factor that
has led to a dramatic increase in the human
population?
a. increase in the carrying capacity
b. increased reproductive life expectancy
c. human invasion of new habitats and
climatic zones
d. a reversal from K-selected reproduction to
r-selected reproduction
e. the development of public health and the
germ theory of diseases
D
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We can detect the SNP in the ?S allele because it destroys a DdeI restriction site, leading to DNA restriction fragment variation revealed by Southern blot analysis
Either two or three restriction sequences for the restriction endonuclease DdeI can occur near the ?-globin gene, depending on the allele. One DdeI restriction sequence is eliminated from the ?S allele by the SNP in the mutant allele because of a mutation in the double-stranded target sequence 5? - CTNAG - 3?. Suppose the wild-type allele sequence is CCTGAG, while a newly identified SNP is CCTTAG. Would this same restriction fragment analysis technique be appropriate for detecting this particular SNP? What other technique(s) could you use to identify this particular mutation?
During the cell cycle, the cell goes through a stage called "G." In this case, "G" stands for
a. gap. b. goal. c. gad. d. glad. e. game.
Inflammation is characterized by
a. redness. b. swelling. c. heat. d. pain. e. all of the above.
The cytoplasmic membrane could best be described as
A) an impermeable barrier. B) a passive conduit for intracellular transport. C) a highly selective permeability barrier. D) a rigid structure that protects the cell.