GRE阅读部分的备考,大家也要利用大量真题的不断练习,才能够得到更好的提升。那么在具体的复习汇总,GRE阅读36套的备考资料,一致得到大家的好评,因此下面小编为大家整理了详细的内容,供大家参考!

  Exercise 1

  Questions 1 to 3 are based on the following reading passage.

  Immediately relevant to game theory are the sex ratios in certain parasitic wasp species that have a large excess of females. In these species, fertilized eggs Line develop into females and unfertilized eggs into males.

  A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized. By Fisher‘s genetic argument that the sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted, it should pay a female to produce equal numbers of sons and daughters. Hamilton, noting that the eggs develop within their host—the larva of another insect—and that the newly emerged adult wasps mate immediately and disperse,offered a remarkably cogent analysis. Since only one female usually lays eggs in a given larva, it would pay her to produce one male only, because this one male could fertilize all his sisters on emergence. Like Fisher, Hamilton looked for an evolutionarily stable strategy, but he went a step further in recognizing that he was looking for a strategy.

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