Which of the following statements is true?
A) Sex determination in fruit flies depends on the X : autosome ratio.
B) Mammalian sex determination can be influenced by temperature.
C) Mammals experience random Y inactivation.
D) The testis-determining factor gene is X-linked.
E) Dosage compensation occurs in the same way in most animals.
A
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Even though plants cells photosynthesize, they still use their mitochondria for oxidation of pyruvate. This will occur in _____
A) photosynthetic cells in the light, while photosynthesis occurs concurrently B) nonphotosynthesizing cells only C) cells that are storing glucose only D) all cells all the time E) photosynthesizing cells in the light and in other tissues in the dark
Some viruses have an additional coating on the outside of the capsid, acquired from the host cell. What is this additional coating called?
a. plasma membrane b. nucleic coat c. envelope d. proteoglycan
Which of the following would be considered a fomite?
A) A fly B) A tick C) An infected toy D) Contaminated water
Which of the following conclusions is an example of inductive reasoning?
A. Given that firms in the auto industry in the Southwest were profitable, all firms nationwide were profitable. B. If firms have economies of scale, then average costs will fall with total output. C. If consumer demand is downward sloping, quantity demanded will fall as prices increase. D. If a firm has monopoly power, then it will price above marginal cost.