Lichens and humans
What will be an ideal response?
-Usnea filipendula ("beard lichen")
-Letharia vulpina ("wolf lichen")
-Evernia prunastri
("oakmoss lichen")
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Imagine that you are a medical student working in a cancer research laboratory. Your boss has given you samples of cancer cells and blood from a patient
She has told you that the cells have no mutations in any of their signaling molecule proteins (i.e., all the proteins are normal), but the cells' signaling transduction properties are not normal, causing them to be cancerous. Which of the following could account for the increased cell proliferation in the patient? A. The cells taken from the patient have more growth factor receptors than normal. B. The concentration of a signaling molecule in the patient is higher in the patient than usual. C. The cells taken from the patient exhibit a reduced level of signal amplification. D. Both A and B. E. A, B, and C.
Which type of white blood cells produces defensive proteins called antibodies?
A. Natural killer cells B. B cells C. Phagocytic cells D. T cells
Melvin Calvin used ________, a specific ________, to deduce the Calvin cycle of photosynthesis
Fill in the blank with correct word.
A repeated sequence, which, for example, can be 10 copies of the sequence TTA, is called a ________
A) VNTR B) RFLP C) STR D) HPLC E) PCR