Admission Tests GMAT Online Practice Questions and Exam Preparation

Admission Tests GMAT Online Questions & Answers

• Question 1:

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  C. Option C

• Question 2:

  According to the passage, Edelman has made innovations in the study of which of the following?

  A. The behavior of multicelular organs ii. The molecular structure of animal and plant tissue III. The overall structure of complex organisms
  B. i only
  C. ii only
  D. III only
  E. i and ii only
  F. ii and III only
  B. i only

  ---

  Explanation/Reference:

  What makes a rhinoceros look like a rhinoceros, or a petunia like a petunia? Understanding the basis of the generation of the forms, patterns, or shapes of complex organisms is a principal subject of biologist Gerald Edelman's stimulating book Topobiology, which explores the links among the development, evolution, form, and function of organisms. In older scientific language, one could say that Edelman has brought a new dimension to morphology, the study of the form and shape of animate and plants, and to histology, the study of the minute structure of tissues. The major thrust of his book te what he calls a morphoregulatory hypothesis, which can be described as the outline of a molecular basis for the formation of pattern, involving three types of genes. In the morphoregulatory sequence, morphoregulatory genes control the production of molecules that cause the formation of clusters of cells. When the cell dusters begin to communicate, they activate another type (selector genes) that then select and switch on a third type of gene (historegulatory genes). In the organisms they have studied, Edelman and his colleagues have found cell adhesion molecules (resulting from morphoregulatory gene action) that are attached to the surface of different cells and link them in clusters. These molecules can appear at different times in the development of a multicellular system, and at various specific sites on the cells. Furthermore, their chemical structure can vary. This tremendous variation allows a great flexibility in the kinds of linkages the molecules effect. A second class of adhesion molecules plays a comparable role In attaching cells to the developing scaffolding of filaments that lie outside cells. Also of particular interest to researchers are what are called cell Junction molecules, composed of clusters of proteins providing small channels from the inside of one cell to the Inside of another. These three types of molecules facilitate a kind of conversation among eels that determines the course of development of organisms. It has been possible to demonstrate how Important these molecules are by treating tissues with agents that block their functions, thus effectively and drastically changing the organism's development.

• Question 3:

  Which of the following, if true, would most undermine the reasoning offered for the claim that gray markets can in certain conditions lead to increased profits among authorized retailers?

  A. More consumers have become price-sensitive over the last ten years and this trend will continue for the foreseeable future.
  B. Gray markets typically remain strong even in markets where authorized retailers have introduced service enhancements.
  C. Price wars among authorized retailers, triggered by the appearance of gray markets when few, if any, consumers are price-insensitive, lead to a cycle of increasing price reductions that severely narrow profit margins.
  D. Authorized retailers who are competing for the business of price-insensitive consumers often become involved in a cycle of expensive service enhancements that significantly narrow profit margins.
  E. Manufacturers who fear that gray marketing will tarnish their brand names sometimes subsidize advertising for authorized retailers, thereby narrowing the manufacturers' profit margins.
  D. Authorized retailers who are competing for the business of price-insensitive consumers often become involved in a cycle of expensive service enhancements that significantly narrow profit margins.

  ---

  Explanation/Reference:

  Manufacturers and retailers tend to look askance at gray markets, where products are sold at cut-rate prices outside their authorized distribution channels. Manufacturers fear that gray markets will undercut margins and tarnish brand names. Retailers fear that they will siphon away customers and erode prices. A new study indicates, however, that gray marketing actually benefits manufacturers and retailers in markets that meet two criteria: first, sharp differences exist in consumers' price sensitivity; second, large numbers of consumers are price-insensitive. In such markets, the low prices of the gray market will attract the most price-sensitive customers. The authorized channels will then compete only for the remaining customers--those who are insensitive to price but sensitive to service. When that happens, the structure of competition and the economics of the market shift. The authorized retailers, freed from having to cater to the bargain hunters, can raise their prices and focus on service. If the concentration of price-insensitive shoppers is high enough, the resulting increase in prices will more than offset the loss of sales to the bargain hunters. The margins and profits of the authorized retailers will increase, and manufacturers will, as a result, be able to boost their wholesale prices.

• Question 4:

  For a certain cube, 3 deferent edges that do not at meet at a single vertex are to be painted red. How many different selections of the 3 different edges to be painted red are possible?

  A. 56
  B. 112
  C. 120
  D. 212
  E. 504
  E. 504

• Question 5:

  As a trained medical doctor and a novelist, playwright, and essayist by vocation, Afro- Colombian Manuel Zapata Olivella abandoned the practice of medicine to pursue his literary career.

  A. As a trained medical doctor
  B. A medical doctor by training
  C. Although trained as a medical doctor
  D. Either a medical doctor by training
  E. While being a trained medical doctor
  B. A medical doctor by training

• Question 6:

  A. -6
  B. -2
  C. 2
  D. 6
  E. 12

  A. -6

• Question 7:

  Medical researcher: A study tracked fluid consumption by thousands of middle-aged peopte for several years. During the study, the people who drank the least fluid were the most Beefy to develop kidney disease. Thus, for such peopte, increasing dairy fluid consumption is likely to prevent the development of kidney disease.

  Which of the following, if true, would most weaken the medical researcher's argument?

  A. A majority of the people in the study who drank less than average amounts of fluids dkl not develop kidney disease during the study.
  B. People suffering from kidney disease in middte age often increase their daify fluid consumption in response to acquiring the disease.
  C. A majority of the people in the study who already had kidney disease when the study began had been drinking less than average amounts of fluid for years.
  D. People suffering from several common medical conditions that often result in kidney dhease tend to feel less thirsty and thus drink less fluid.
  E. A majority of the people in the study who decreased their dairy fluid consumption during the study developed kidney disease.
  D. People suffering from several common medical conditions that often result in kidney dhease tend to feel less thirsty and thus drink less fluid.

• Question 8:

  Research biologist Sofie Salama's team is looking for regions of the human genome that distinguish humans from chimps and contain genes once active in our ancestors, but being no longer beneficial to humans, so they have become inactive and riddled with mutations.

  A. once active in our ancestors, but being no longer beneficial to humans, so they
  B. active in our ancestors, but once they were no longer beneficial to humans,
  C. once active in our ancestors, but no longer beneficial to humans, so
  D. active at one time in our ancestors but no longer beneficial to humans, thus
  E. that were once active in our ancestors but that, because they are no longer beneficial to humans,
  E. that were once active in our ancestors but that, because they are no longer beneficial to humans,

• Question 9:

  Daniel: Historically, railroads substantially altered the course of the United States economy, enabling the country to enjoy unprecedented growth in the nineteenth century.

  Robert: It's true that growth required cheap inland transportation, which railroads provided. But with government support similar to the massive land grants that subsidized rapid railroad expansion, canals and roads could have had the same effect. Which of the following is most likely a point that Robert believes is at issue between Daniel and himself?

  A. Whether the nineteenth-century economic growth in the U.S. was caused by railroads
  B. Whether the government should have supported canals and roads in the U.S. in the nineteenth century
  C. Whether railroads' contribution to economic growth was enabled by government support
  D. Whether economic growth depends on government support for technology that encourages that growth
  E. Whether railroads were necessary for the unprecedented economic growth in the U.S in the nineteenth century
  E. Whether railroads were necessary for the unprecedented economic growth in the U.S in the nineteenth century

• Question 10:

  When fish or mammals ingest the chemical rotenone, enzymes In (he digestive tract metabolize most of it, rendering It harmless, but If enough rotenone enters the bloodstream, It can kill them. Wildlife managers who use rotenone in rivers or lakes to reduce fish populations claim that the practice is harmless to aquatic mammals, but clearly if enough rotenone is used to kill fish, mammals must be at risk too.

  Which of the following, if true, most seriously weakens the argument?

  A. Rotenone can enter a fish's bloodstream directly through the gills.
  B. If populations of some fish species are allowed to grow unchecked, they can have disruptive ecological effects that ultimately harm wild mammal populations.
  C. When rotenone is introduced into a fast-flowing river, it can travel a considerable distance downstream before breaking down.
  D. For most aquatic mammals, fish constitute a substantial portion of their diet.
  E. Chemicals that In the past have been used to reduce fish populations have considerably higher toxicity to aquatic mammals than rotenone does.
  C. When rotenone is introduced into a fast-flowing river, it can travel a considerable distance downstream before breaking down.