Consider a population of size Ne in which a new mutation that confers a fitness ad-vantage of 1+s. This new allele will be more likely to go to fixation due to selection if:
a. Ne is large.
b. Ne is small.
c. s is small.
d. s is large.
e. A and D.
E
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Patients who have type 2 diabetes no longer respond normally to insulin. Which statement best explains this symptom?
A. Their cells express less insulin receptor. B. The nucleus of their cells are altered so that insulin can not bind. C. The insulin receptors on their cells have mutated. D. Type 2 diabetics do not produce insulin. E. The signal transduction pathways in the cells no longer exist.
Which of the following does NOT apply to parasitoids?
a. They are insects. b. They kill animals on which they feed.
c. Their host usually survives. d. The larvae develop in a host’s body. e. Some are effective biological control agents.
Space for storing food, water, enzymes, or waste= ______________.
Fill in the blank(s) with the appropriate word(s).
Subunit vaccines are safer than traditional vaccines because they
A) are acellular. B) are administered in food. C) do not pose a risk for causing the disease. D) are acellular and do not pose a risk for causing the disease. E) are acellular and can be administered in food.