Which of the following functions does an
arthropod’s exoskeleton serve?
a. protection from predators
b. attachment points for muscles
c. water conservation
d. body weight support
e. it serves all of these functions
E
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You are studying an individual with very low levels of insulin in her blood. Further analysis indicates that cells of her pancreas are producing normal levels of this protein, but it is accumulating in the cytoplasm rather than being secreted from the cells. Which hypothesis makes the most sense to explain this observation?
A. A small deletion has removed the nucleotides that code for the signal sequence at the amino terminus of the protein. B. A missense mutation has caused premature termination during translation of this protein. C. A chromosomal segment that includes the gene for insulin has been inverted. D. A two-base deletion near the middle of the gene has altered the reading frame during translation of the protein. E. A missense mutation has altered the ribosome-binding sequence at the 5' end of the mRNA. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about transcription and translation? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What is a characteristic of androgen insensitivity syndrome?
a. No testosterone is produced. b. Chemicals circulating in the blood deactivate the male hormone. c. The cellular receptor for testosterone in the target cells is defective. d. The male with this defect is normal in all respects except that he is sterile. e. Testosterone is degraded quickly.
Parental care requires time and energy that an individual could otherwise invest in reproducing again. What determines how much parental care is given?
What will be an ideal response?
Electromagnetic energy of which of the
following wavelengths can damage DNA?
a. 300 micrometers b. 300 centimeters c. 300 nanometers d. 300 millimeters e. 300 meters