In 1953, Watson and Crick unlocked the structure of the DNA molecule and set into motion the modern
study of genetics. This advance allowed our study of life to go beyond the so-called wet and dirty realm of
biology, the complicated laboratory study of proteins, cells, organelles, ions, and lipids. The study of life
could now be performed with more abstract methods of analysis. By discovering the basic structure of
DNA, we had received our first glance into the information-based realm locked inside the genetic code.
Which of the following does the passage discuss as a change that the discovery of DNA brought to the
study of life?

• A. New and more abstract methods of study were possible.
• B. Modern genetics matured past its Mendelian roots.
• C. Information-based study of genes became absolete
• D. Biology could then focus on molecules rather than cells.
• E. The study of lipids and proteins became irrelevant.

The spring is fairly with us now. Outside my laboratory window the great chestnut-tree is all covered with
the big, glutinous, gummy buds, some of which have already begun to break into little green shuttlecocks.
As you walk down the lanes you are conscious of the rich, silent forces of nature working all around you.
The wet earth smells fruitful and luscious. Green shoots are peeping out everywhere. The twigs are stiff
with their sap; and the moist, heavy English air is laden with a faintly resinous perfume. Buds in the
hedges, lambs beneath them--everywhere the work of reproduction going forward!
I can see it without, and I can feel it within. We also have our spring when the little arterioles dilate, the
lymph flows in a brisker stream, the glands work harder, winnowing and straining. Every year nature
readjusts the whole machine. I can feel the ferment in my blood at this very moment, and as the cool
sunshine pours through my window I could dance about in it like a gnat. So I should, only that Charles
Sadler would rush upstairs to know what the matter was. Besides, I must remember that I am Professor
Gilroy. An old professor may afford to be natural, but when fortune has given one of the first chairs in the
university to a man of four-and-thirty he must try and act the part consistently.
In 1st paragraph, the word "lambs" is an example of which device?

• A. flashback
• B. allusion
• C. foreshadowing
• D. metaphor
• E. simile

But the Dust-Bin was going down then, and your father took but little, excepting from a liquid point of view.
Your mother's object in those visits was of a house-keeping character, and you was set on to whistle your
father out. Sometimes he came out, but generally not. Come or not come, however, all that part of his
existence which was unconnected with open Waitering was kept a close secret, and was acknowledged
by your mother to be a close secret, and you and your mother flitted about the court, close secrets both of
you, and would scarcely have confessed under torture that you know your father, or that your father had
any name than Dick (which wasn't his name, though he was never known by any other), or that he had
kith or kin or chick or child.
Perhaps the attraction of this mystery, combined with your father's having a damp compartment, to
himself, behind a leaky cistern, at the Dust Bin, a sort of a cellar compartment, with a sink in it, and a smell,
and a plate-rack, and a bottle-rack, and three windows that didn't match each other or anything else, and
no daylight, caused your young mind to feel convinced that you must grow up to be a Waiter too; but you
did feel convinced of it, and so did all your brothers, down to your sister. Every one of you felt convinced
that you was born to the Waitering.
At this stage of your career, what was your feelings one day when your father came home to your mother
in open broad daylight, of itself an act of Madness on the part of a Waiter, and took to his bed (leastwise,
your mother and family's bed), with the statement that his eyes were devilled kidneys. Physicians being in
vain, your father expired, after repeating at intervals for a day and a night, when gleams of reason and old
business fitfully illuminated his being, "Two and two is five. And three is sixpence." Interred in the
parochial department of the neighbouring churchyard, and accompanied to the grave by as many Waiters
of long standing as could spare the morning time from their soiled glasses (namely, one), your bereaved
form was attired in a white neckankecher [sic], and you was took on from motives of benevolence at The
George and Gridiron, theatrical and supper. Here, supporting nature on what you found in the
plates(which was as it happened, and but too often thoughtlessly, immersed in mustard), and on what you
found in the glasses (which rarely went beyond driblets and lemon), by night you dropped asleep standing,
till you was cuffed awake, and by day was set to polishing every individual article in the coffee-room. Your
couch being sawdust; your counterpane being ashes of cigars. Here, frequently hiding a heavy heart
under the smart tie of your white neck ankecher (or correctly speaking lower down and more to the left),
you picked up the rudiments of knowledge from an extra, by the name of Bishops, and by calling
plate-washer, and gradually elevating your mind with chalk on the back of the corner-box partition, until
such time as you used the inkstand when it was out of hand, attained to manhood, and to be the Waiter
that you find yourself.
I could wish here to offer a few respectful words on behalf of the calling so long the calling of myself and
family, and the public interest in which is but too often very limited. We are not generally understood. No,
we are not. Allowance enough is not made for us. For, say that we ever show a little drooping listlessness
of spirits, or what might be termed indifference or apathy. Put it to yourself what would your own state of
mind be, if you was one of an enormous family every member of which except you was always greedy,
and in a hurry. Put it to yourself that you was regularly replete with animal food at the slack hours of one in
the day and again at nine p.m., and that the repleter [sic] you was, the more voracious all your
fellow-creatures came in. Put it to yourself that it was your business, when your digestion was well on, to
take a personal interest and sympathy in a hundred gentlemen fresh and fresh (say, for the sake of
argument, only a hundred), whose imaginations was given up to grease and fat and gravy and melted
butter, and abandoned to questioning you about cuts of this, and dishes of that, each of 'em going on as if
him and you and the bill of fare was alone in the world.
What term best describes the overall tone toward waiters in this excerpt?

• A. empathetic
• B. satiric
• C. informational
• D. apologetic
• E. belittling

Sir Giles's irritating reserve, not even excused by a word of apology, reached the limits of his endurance.
He respectfully protested. "I regret to find, sir," he said, "that I have lost my place in my employer's
estimation. The man to whom you confide the superintendence of your clerks and the transaction of your
business has, I venture to think, some claim (under the present circumstances) to be trusted." The banker
was now offended on his side.
"I readily admit your claim," he answered, "when you are sitting at your desk in my office. But, even in
these days of strikes, co-operations, and bank holidays, an employer has one privilege left--he has not
ceased to be a Man, and he has not forfeited a man's right to keep his own secrets. I fail to see anything in
my conduct which has given you just reason to complain." Dennis, rebuked, made his bow in silence, and
withdrew.
Did these acts of humility mean that he submitted? They meant exactly the contrary. He had made up his
mind that Sir Giles Mountjoy's motives should, sooner or later, cease to be mysteries to Sir Giles
Mountjoy's clerk.
In context, the words "irritating reserve" in first paragraph is best represented by the word

• A. perturbation.
• B. level of resistance
• C. anguish.
• D. patience.
• E. tolerance.