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Admission Test Section One : Verbal Sample Questions:

1. For absolute dating of archeological artifacts, the radiocarbon method emerged during the latter half of
the twentieth century as the most reliable and precise method. The results of obsidian (volcanic glass)
dating, a method based on the belief that newly exposed obsidian surfaces absorb moisture from the
surrounding atmosphere at a constant rate, proved uneven. It was initially thought that the thickness of
the hydration layer would provide a means of calculating the time elapsed since the fresh surface was
made. But this method failed to account for the chemical variability in the physical and chemical
mechanism of obsidian hydration. Moreover, each geographic source presented unique chemical
characteristics, necessitating a trace element analysis for each such source. Yet despite its limitations,
obsidian dating helped archeologists identify the sources of many obsidian artifacts, and to identify in turn
ancient exchange networks for the flow of goods. Nor were ceramic studies and fluoride analysis
supplanted entirely by the radiocarbon method, which in use allows for field labeling and laboratory errors,
as well as sample contamination. In addition, in the 1970s, dendrochronological (tree-ring) studies on the
bristlecone pine showed that deviation from radiocarbon values increases as one moves back in time.
Eventually calibration curves were developed to account for this phenomenon; but in the archeological
literature we still find dual references to radiocarbon and sidereal, or calendar, time.
The author would probably consider which of the following the LEAST likely means of dating
archeological artifacts?

A) Ceramics studies
B) Radiocarbon dating
C) Obsidian hydration-layer analysis
D) Fluoride analysis
E) Dendrochronological studies

2. WAN:

A) twinkling
B) flushed
C) patchy
D) robust
E) comely

3. Human cells are programmed to selfdestruct at the same rate at which they are generated. However, the
programs can malfunction, resulting either in excessive cell growth, which can lead to cancer, or
excessive cell destruction, which can lead to degenerative diseases. As for the latter, using a tool called
RNA interference, researchers can turn off the functions of genes individually and, by observing the
results, determine which genes influence the process of cell death. Geneticists have isolated more than
one hundred different human genes that prevent cells from self-destructing. However, these genes
operate interdependently toward this end; moreover, most such genes serve other functions as well,
including cell differentiation and proliferation. Scientists are just beginning to identify the gene groups that
play key roles in the prevention of cell death and to understand the intricacies of how these groups
function, not just as units but also together, in what appears to be a vast network. Building on this
knowledge, researchers hope to learn how to precisely manipulate the process of cell death in humans-a
crucial step toward the development of diagnostics and treatments that target the specific diseases
associated with out-of-control cell destruction.
It can be inferred from the passage that the author mentions "cell differentiation and proliferation" (lines
2 1-22) probably in order to

A) emphasize the complexity of the interplay among gene functions
B) distinguish internal inputs that trigger cell self-destruction from external sources
C) differentiate the various types of genes that prevent cell death
D) point out that different genes generally perform different functions
E) identify the mechanism by which human cells can multiply out of control

4. Mount Vesuvius, a volcano located between the ancient Italian cities of Pompeii and
Herculaneum, has received much attention because of its frequent and destructive eruptions. The most
famous of these eruptions occurred in A. D. 79. The volcano had been inactive for centuries. There was
little warning of the coming eruption, although one account unearthed by archaeologists says that a hard
rain and a strong wind had disturbed the celestial calm during the preceding night. Early the next morning,
the volcano poured a huge river of molten rock down upon Herculaneum, completely burying the city and
filling in the harbor with coagulated lavA. Meanwhile, on the other side of the mountain, cinders, stone and
ash rained down on Pompeii. Sparks from the burning ash ignited the combustible rooftops quickly. Large
portions of the city were destroyed in the conflagration. Fire, however, was not the only cause of
destruction. Poisonous sulphuric gases saturated the air. These heavy gases were not buoyant in the
atmosphere and therefore sank toward the earth and suffocated people. Over the years, excavations of
Pompeii and Herculaneum have revealed a great deal about the behavior of the volcano.
By analyzing data, much as a zoologist dissects a specimen animal, scientist have concluded that the
eruption changed large portions of the area's geography. For instance, it turned the Sarno River from its
course and raised the level of the beach along the Bay of Naples. Meteorologists studying these events
have also concluded that Vesuvius caused a huge tidal wave that affected the world's climate. In addition
to making these investigations, archaeologists have been able to study the skeletons of victims by using
distilled water to wash away the volcanic ash. By strengthening the brittle bones with acrylic paint,
scientists have been able to examine the skeletons and draw conclusions about the diet and habits of the
residents. Finally, the excavations at both Pompeii and
Herculaneum have yielded many examples of classical art, such as jewelry made of bronze, which is an
alloy of copper and tin. The eruption of Mount Vesuvius and its tragic consequences have provided us
with a wealth of data about the effects that volcanoes can have on the surrounding areA. Today
volcanologists can locate and predict eruptions, saving lives and preventing the destruction of cities and
cultures.
_ ___have concluded that the volcanic eruption caused a tidal wave.

A) Scientist who study oceans
B) Scientist who study animal behavior
C) Scientist who study ash
D) Scientist who study atmospheric conditions
E) Answer not available in article

5. MUNIFICENT : GENEROSITY ::

A) dolorous : sorrow
B) beguiled : judiciousness
C) fortunate : luck
D) indisputable : confidence
E) domineering : timidity

Solutions: