The main underlying mutation seen in nearly all Burkitt's Lymphoma tumors is
a) Deletion of the immunoglobulin heavy chain gene leading to a compromised immune system
b) A translocation that results in Src being localized improperly to certain regions of the cell
c) Truncation of the on/off regulatory peptide domain of Abl
d) Over expression of the transcription factor Myc
Answer: d) Over expression of the transcription factor Myc
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Beggiatoa are ________.
A. obligate aerobes B. obligate anaerobes C. microaerophiles D. facultative anaerobes
A(n) __________ is an extracellular signaling molecule that exerts its effect at very low concentrations. Fill in the blank(s) with the appropriate word(s)
Organisms that demonstrate type I
survivorship are characterized by a. high r, small offspring. b. low r, small offspring. c. low r, large offspring. d. high r, large offspring. e. low r, large population size
Which of the following is NOT produced by the gonads?
a. testosterone b. progesterone c. follicle-stimulating hormone d. androgens e. inhibin.