Fungi and animals are similar because they both
A. are phototrophs.
B. have cell walls made of chitin.
C. are heterotrophs.
D. use starch as their main storage carbohydrate.
E. are decomposers.
Answer: C. are heterotrophs.
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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?
Which of the following is not true of the interaction of TBP with DNA?
A. TBP is able to interact with DNA nonspecifically with respect to sequence. B. TBP binds the TATA box through minor groove DNA contacts. C. A helix-turn-helix motif in TBP makes the DNA contacts. D. The DNA bound by TBP is bent. E. Two pairs of phenylalanine side chains are positioned between base pairs.
Which body defense is neutralized by the type III secretion system of Yersinia pestis?
A. Antibodies B. Complement C. Phagocytes D. TH cells E. Cytotoxic T cells
Drosophila developmental mutants of ____ genes produce larvae with mirror image segments
a. gap b. pair-rule c. segmentation d. paternal effect e. segment polarity