You are asked to help solve a murder, and a note from the murderer taunting the police says that the crime was committed using a lipid. What molecule could you exclude from your search?
What will be an ideal response?
a starch molecule
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Which of the following is most likely to occur when a tumor-suppressor gene is mutated?
A. The tumor-suppressor gene may be overactive. B. The resulting tumor-suppressor protein would further suppress cell proliferation. C. The resulting tumor-suppressor protein would activate an oncogene. D. The tumor-suppressor gene and resulting protein may lose its function and ability to suppress cell proliferation. E. None of the choices are possible.
In a tropical forest some leaves are dark green
and some are light green. In a population of caterpillars, homozygous dominant dark green caterpillars thrive eating the green foliage; homozygous recessive light green caterpillars thrive eating light green foliage; heterozygous caterpillars of an intermediate color green are easily seen by birds and eaten, thus there frequency is far less than the dominants or recessives. This is an example of ___ selection.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
Atrazine is used as a(an)
a. pesticide. b. fertilizer. c. herbicide. d. substitute for PCBs. e. insect repellent
The accompanying figure illustrates the process of ________, which requires a(n) ________ between two regions in a fluid
Fill in the blank(s) with correct word