8 The function of the coded instructions contained in the body
cells of
an organism is to
1 form a variety of gametes that will
pass on hereditary information
2 direct the synthesis of proteins necessary for proper cell
function
3 synthesize different kinds of amino acids in a specific sequence
4 produce the inorganic molecules needed for normal cell growth
9 Which characteristic allows enzymes to function in a specific
way?
1 Enzymes are complex compounds
composed of starch.
2 Each enzyme has a characteristic shape.
3 Enzymes are long, complex fats.
4 Each enzyme is made up of four subunits.
10 Flower color in primrose plants is controlled by an
individual gene.The sudden appearance
of one white flowering primrose in a
plant breeder's field of red primrose plants is most
likely due to
1 a change in the amount of glucose
produced during photosynthesis
2 the use of a new natural fertilizer on the field
3 rapid mitotic divisions within the developing seeds
4 a random change in the structure of DNA during meiosis
11 White short-homed cattle and Black Angus cattle have been
crossed
to produce offspring
with superior beef and rapid growth
qualities. This process of choosing organisms with the
most desirable traits
for mating is known as
1 cloning 3 selective breeding
2 biodiversity 4 genetic engineering
12 When the antibiotic penicillin was first introduced, it was
immediately
effective in
combating staphylococcus bacterial infections. After
a number of years, there were
outbreaks of staphylococcal
infections that did not respond to treatment with penicillin.
The best
explanation for this situation is that
1 members of the original population of
bacteria that were penicillin resistant
survived and reproduced, creating a more
resistant population
2 the bacteria that survived exposure to penicillin learned to
avoid it
3 the bacteria that caused the new outbreaks were from populations
that
had never been exposed to penicillin
4 during each generation, the bacteria modified their own
DNA to increase
their ability to resist penicillin and passed this
ability on to their descendants
13 The diagram below illustrates some
key steps of a procedure in one
area of
biotechnology.
2 organic molecules
3 minerals
4 inorganic molecules
14 Which statement about the rates of evolution for different
species is
in agreement with the theory of evolution?
1 They are identical, since the species
live on the same planet.
2 They are identical, since each species is at risk of
becoming extinct.
3 They are different, since each species has different
adaptations that function
within a changing environment.
4 They are different, since each species has access to
unlimited
resources within its
environment.
15 Which concept is not a part of the theory of evolution?
1 Present-day species developed from
earlier species.
2 Some species die out when environmental changes occur.
3 Complex organisms develop from simple organisms over time.
4 Change occurs according to the needs of an individual organism
to survive.
16 Warts result when certain viruses cause skin cells to
reproduce
at a high rate. This
rapid reproduction of skin cells is due to
the viruses
stimulating
1 cellular
digestion
3 synthesis processes
2 mitotic cell
division
4 meiotic cell division
