The molecule that contains an anticodon is
A. DNA.
B. tRNA.
C. mRNA.
D. rRNA.
B. tRNA.
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The expression of thousands of genes simultaneously is easily accomplished using which of the following techniques?
A) siRNAs B) Northern blotting C) microarrays D) Eastern blotting E) PAGE analysis
According to your text, how many classes of IFs exist?
The proteins of intermediate filaments (IFs) are tissue-specific. Unlike microtubules or microfilaments, the amino acid composition of intermediate filaments varies from tissue to tissue. IFs are classified by the cell type or tissue in which they are found.
Some scientists have suggested that recent outbreaks of sudden oak disease could be fought through the creation of transgenic plants with genetic resistance to sudden oak disease. What would be the most likely source of this genetic resistance?
A. entirely new genes created in a lab and inserted into the oak genome B. a species of aphid with resistance to sudden oak disease C. the original host species in the native region of the disease D. domesticated apple trees adapted to North America E. other tree species with unusually high levels of host plant resistance
During the plant life cycle, haploid spores are produced by meiosis in structure called _______, located at branched tips.
A. Microphylls B. Sporangia C. Sporopollenins D. Megaphylls E. Zygotes