In deductive reasoning, specific observations may be used to draw a broad, general conclusion
a. true
b. false
Answer: b. false
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Investigators have found a new species bacteria that lives under both aerobic and anaerobic conditions. They hypothesize that different genes are expressed in each condition. What experiment could test this hypothesis and identify important genes?
A. Completely sequence the genome of the bacteria in both aerobic and anaerobic conditions B. Collect mRNA from both anaerobic and aerobic conditions and generate two cDNA libraries C. Measure levels of RNA Polymerase in both conditions D. Design primers to a specific region of the genome and sequence this region during both anaerobic and aerobic conditions Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about gene expression? transcriptional. Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The cell membranes of wall-less archaeons are strengthened by
A. glycoprotein or protein layers. B. diglycerol ethers. C. pseudomurein. D. diglycerol tetraethers.
The compounds involved in phototropism are
a. phototropins. b. gibberellins. c. cytokinens. d. phytoestrogens. e. a combination of more than one of these
To generate a knockin mouse, a scientist introduces to ES cells a construct with a mutant exon and within an adjacent intron, loxP sites flanking a neomycin resistance gene. What event will occur next?
A) Homologous recombination between the mutant DNA and the corresponding gene in the mouse genome. B) Recombination between the loxP sites. C) Transplantation of cells into host blastocyst. D) Crossing of heterozygous mice to a Cre-expressing strain.