An ampicillin-sensitive culture of E. coli is From the list BELOW, which of the following is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into a bacterium?
A. only the lactose-positive bacteria will grow.
B. only the ampicillin-sensitive bacteria will grow.
C. only the bacteria with the plasmid will grow.
D. all bacteria will grow.
E. no bacteria will grow.
Answer: C. only the bacteria with the plasmid will grow.
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Phagotrophy (Phagocytosis) is:
A. the movement of small organic molecules across the cell membrane B. the capture and ingestion of food particles by a cell C. the synthesis of organic molecules from inorganic molecules using light as an energy source D. the ability to use photosynthesis and osmosis or particle ingestion for nutrition
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?
What would a news report on CNN that describes recently published research on a new treatment for colds be an example of?
A) anecdote B) primary source C) secondary source D) peer-reviewed report
The pattern of leaf arrangement on a stem is called
A. protodermis. B. meristematic spacing. C. nodular termini. D. phyllotaxy. E. axillary arrangement.