The ________ experiments use an initial exposure to a radioactive compound in the mRNA followed by monitoring of the radioactive compound to determine its fate in the cell.
Fill in the blank(s) with the appropriate word(s).
pulse-charge
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The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers and toes) in mammals. Several digits arise directly from cells that both express and respond to secreted SHH. What type of signaling would this be considered?
A. Direct contact B. Paracrine C. Endocrine D. Synaptic E. Autocrine
The deposits of the following phytoplankton are used commercially in polishes and filtering devices:
a. dinoflagellates. b. foraminiferans. c. coccolithophores. d. diatoms. e. radiolarians.
A 30-year-old female complains of frequent and painful urination. A urinalysis is performed, and the results indicate the presence of bacteria in the urine. What problem does this woman have? From an anatomical perspective, explain to the patient why she
is more likely to suffer from this disorder than her husband. What sort of treatment would be appropriate? What will be an ideal response?
Competence means that a plant is _________, while determination means that a plant tissue __________. The acquisition of flowering competence is an example of a __________.
A. capable of responding to signals that trigger a fate change; remains capable of adopting more than one possible developmental fate; phaseolus B. unresponsive to signals that trigger a fate change; is committed to a specific developmental fate; fate change C. in the process of responding to signals that trigger a fate change; was driven to adopt an abnormal developmental fate by transgene expression; flowerization D. capable of responding to signals that trigger a fate change; is committed to a specific developmental fate; phase change