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BIO 110 First Exam(avec anwsers)

BIO 110 First Exam(avec anwsers) - BIO 110 First Exam 1...

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BIO 110 First Exam 1) Mosquitoes have heritable variation for insecticide resistance (amount and kind); however, all mosquitoes require standing water for the development of offspring. To which of the following control methods would the mosquitoes be least likely to develop resistance? A) Rotating between several sprayed insecticides B) Using one spray insecticide consistently C) Removing all standing water D) Increasing sources of standing water E) Alternating between years of spraying and not spraying insecticide 2) To distinguish prokaryotes and eukaryotes, we need to consider: A) The specific types of lipids present in the outer plasma membrane B) The type of molecule used as its genetic information C) Whether the genetic information is enclosed in a protective layer of phospholipid membrane bilayer D) Whether the organism is harmful to the cell 3) In which way are cells and viruses different in how they reproduce? Viruses: A) Only reproduce sexually by fusing with another virus; cells can reproduce both sexually and asexually B) Make a duplicate copy of their genetic material before they can divide in two; cells can wait until after they have divided to copy genes C) Only reproduce after entering a host cell; cells can reproduce alone D) Invade a cell after they have reproduced; cells can invade other cells without reproducing first 4) An organism has the following” proteins, DNA, ribosomes, plasma membrane and mitochondria (among other structures.) Select the most inclusive answer for what type of organism it could be.
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5) Which of the following would you NOT expect to find in a Toxoplasma cell? 6) Beavers in North America used to be more active during the daytime (diurnal), but are now largely nocturnal, probably a result of intensive trapping and hunting during the 1800s. Assuming that this behavior is partially or completely genetically determined, what can we predict happened to the population?
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