Chemoreceptors play a role in the sense of _____
a. taste d. hearing
b. smell e. both tast and smell
c. touch f. all of these
E
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Which of the following, if true, would force us to reevaluate the findings that Cann discovered with regard to the human family tree?
A. if human fossils were discovered in Australia that had DNA similar to the DNA found in early Homo sapiens in Africa B. if Neanderthal genomic DNA was found in our genome C. if humans fossils were discovered that had genomic DNA different than their mitochondrial DNA D. if human fossils were discovered in Asia that had DNA completely different from the DNA found in early Homo sapiens in Africa E. None of the answer options is correct.
In lateral growth, the _________ is the source of new xylem and phloem, whereas the _________ renews and maintains the outer layer that protects the stem
A. cork cambium; vascular cambium B. vascular cambium; cork cambium C. secondary vascular tissue; primary vascular tissue D. sapwood; heartwood E. apical meristem; lateral meristem
Describe how siRNA functions in regulation of expression and how this can be used as a tool in genetic research
What will be an ideal response?
One possible use of transgenic plants is in the production of human proteins, such as vaccines. Which of the following is a possible hindrance that must be overcome?
A) prevention of transmission of plant allergens to the vaccine recipients B) prevention of vaccine-containing plants being consumed by insects C) use of plant cells to translate non-plant-derived mRNA D) inability of the human digestive system to accept plant-derived protein