Marine cone snails, Conus magus, are the source of ________
A) calcitonin used to treat osteoporosis
B) growth hormone used to treat dwarfism
C) hydroxyapatite used to treat arthritis
D) cells for the LAL test used to detect bacterial contamination of surgical tools
E) Prialt, a peptide used as a pain reliever
E
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Which of the following general transcription factors is bound to RNA polymerase II before it is recruited to the promoter?
A. TFIIB B. TFIIE C. TFIIF D. TFIIH E. None of the choices given is correct.
Which method of reproduction posed a challenge for clam and oyster fishery workers who thought that cutting predatory sea stars into parts would kill them, but only increased the number of sea stars?
a. Fragmentation b. Fusion c. Budding d. Fission
Sexual reproduction in animals requires _____
a. meiosis b. fertilization c. spore formation d. meiosis and fertilization
When the net movement of water in and out a cell is zero, that solution is said to be:
a. osmotic b. isotonic c. hypotonic d. hypertonic e. pressurized