Gastrulation is controlled by signal-sending cells that
cause movement of neighboring cells and this is
called __________. Fill in the blank(s) with the appropriate word(s).
Answer: embryonic induction
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Which of the following statements regarding Fas-mediated programmed cell death is false?
A) Fas ligand binding with Fas receptor stimulates a specific G protein. B) Fas ligand and receptor interaction results in the recruitment of adaptor proteins in the target cell. C) Capases are activated in the process. D) The caspase cascade results in the cleavage of the proteins within the target cell. E) It ultimately results in death of the cell.
Emerging diseases ____
a. are related to lifestyle factors b. are caused by poor diet c. are never caused by viruses d. are caused by pathogens that until recently had limited impact on human health e. include obesity and type 2 diabetes
Root hairs are:a
flattened extensions of epidermal cells. b. formed once in the area of cell maturation. c. small in number. d. located in front of the root tip. e. short-lived
In which of the following ways could signal transduction most probably be explored in research to treat cancer?
A) removal of serine/threonine phosphate acceptors from transduction pathways in colon pre-cancerous growths B) alteration of protein kinases in cell cycle regulation in order to slow cancer growth C) increase in calcium ion uptake into the cytoplasm in order to modulate the effects of environmental carcinogens D) expansion of the role of transduction inhibitors in the cells before they give rise to cancer E) increase in the concentration of phosphodiesterases in order to produce more AMP