What is a sink population?
a. a large pan-mictic population comprising all members of a species
b. a metapopulation
c. a local population that would decline to extinction without immigration
d. a local population in which emigration rate exceeds immigration rate
e. A and B
C
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Define aneuploidy and describe the sex chromosome aneuploidies involved in Turner syndrome, Klinefelter syndrome, and XYY syndrome; list characteristics of each disorder
What will be an ideal response?
Your roommate made potato salad and then let it sit on the counter overnight, forgetting to refrigerate it. When she discovered it in the morning, she asked you whether you thought it would be safe to eat. How should you reply?
A. Yes, as long as she refrigerates it now, since the cold will kill the microorganisms. B. No, because refrigeration will not inactivate microbial toxins that may have been produced while the salad sat at room temperature. C. Yes, as long as she refrigerates it now, because any toxins produced will be destroyed by refrigeration. D. Yes, as long as she refrigerates it now, since the cold will stop microbial growth and inactivate toxins. E. Yes, as long as she refrigerates it now, since the cold will slow the growth of any contaminating microorganisms.
Which includes the other four?
a. atoms b. molecules c. electrons d. elements e. protons
Two forms of hemophilia are determined by genes on the X chromosome in humans. Assume that a phenotypically normal woman whose father had hemophilia is married to a normal man. What is the probability that their first daughter will have hemophilia?
A. 25 B. 0 C. 50 D. 100