The following questions refer to the figure above illustrating the initial steps in the
formation of recombinant DNA.
The circles in “B” are
a. fragments of the main bacterial DNA.
b. plasmids.
c. cDNA molecules.
d. DNA templates.
e. none of these.
After meals
a. the pancreas secretes glucagon.
b. liver cells take up glucose and produce glycogen.
c. the brain continues to receive adequate glucose.
d. fatty-acid conversions supply about half of the ATP needed by muscle and liver cells.
e. all of these occur.
The apicomplexan parasite Plasmodium infects cells of which of the following?
a. blood
b. liver
c. brain
d. both blood and liver
e. blood, liver, and brain
The normal sperm cell of species X carries 11 chromosomes. Following nondisjunction
in the formation of secondary spermatocytes and their subsequent fertilization of
normal ova, some of the zygotes will have 21 chromosomesand the remainder will have
how many chromosomes?
a. 12
b. 23
c. 24
d. 46
e. 47
In an Rh incompatibility during pregnancy, the mother
a. must be positive and her first and second fetuses positive.
b. must be negative and her first and second fetuses positive.
c. must be negative and her first and second fetuses negative.
d. must be positive and her first and second fetuses negative.
e. and the father must both be negative and the fetus positive.
Four of the five items listed below are chloroplast features. Select the exception.
a. stroma
b. granum
c. microbody
d. pigment
e. ATP
Which of the following factors influence the opening and closing of the stomata?
a. rate of photosynthesis
b. water availability
c. concentration of carbon dioxide in the leaf
d. light intensity
e. all of these
Adding acetyl groups makes genes accessible to transcription by
a. increasing the pH of the cell.
b. making histones loosen their grip on the DNA molecule.
c. modifying the nucleotides of the promoter region of the DNA molecule.
d. enhancing the activity of RNA polymerase.
e. enhancing the development of a DNA-RNA hybrid.
Which of the following is not a modern ape?
a. Gibbon.
b. New World Monkey.
c. Chimpanzee.
d. Gorilla.
e. Orangutan.
aldosterone
Choose the one most appropriate answer for each.
a. do not maintain the same body temperature at all times; are capable of internal heat
production
b. heat energy is released to the air when liquid water converts to gaseous form
c. bulk flow of protein-free plasma from capillaries into Bowman’s capsule
d. animals with more or less constant body temperature
e. emission of heat from body surface when environmental temperature is lower than
the body temperature
f. movement of ions from peritubular capillaries into nephron tubules
g. loss of too much body heat
h. heat next to the body’s surface undergoes mass transport by air or water currents
i. active and passive transport of solutes from peritubular capillaries into the glomerular
capillaries
j. a long, slender, tubular unit in the vertebrate kidney that forms urine
k. body temperatures rise and fall with environmental changes
l. secreted by adrenal glands; influences sodium reabsorption
m. passive transport of water; active and passive transport of solutes out of the nephron
into peritubular capillaries
n. heat energy is transferred from high to low temperature regions due to collisions
between adjacent molecules
o. released from the posterior lobe of the pituitary in response to hypothalamic signals
p. toxic substances are extracted from blood circulating in cellophane tubes suspended
in a warm-water bath
q. erection of hairs and feathers by smooth muscles in the skin
The first stable compound produced from CO2 in the light-independent reaction is
a. phosphoglycerate (PGA).
b. ribulose bisphosphate (RuBP).
c. phosphoglyceraldehyde (PGAL).
d. O2.
e. NADP+.
A fish circulatory system is indicated by
a. A.
b. B.
c. C.
d. both A and B.
e. none of these.
Nematocysts are used for
a. reproduction.
b. excretion.
c. muscle action.
d. circulation.
e. defense.
Which of the following statements is(are) true concerning promoters?
a. They are short sequences in DNA.
b. They are locations in DNA where regulatory proteins gather.
c. They control transcription.
d. They are associated with specific genes.
e. All of these are true.
Which of the following affects the rate of diffusion through a selectively permeable
membrane?
I. concentration gradient
II. temperature
III. molecular size
a. I only
b. II only
c. I and II
d. II and III
e. I, II, and III
The DNA strands that will be together in the new DNA molecules are
a. A – D and B – C.
b. A – B and C – D.
c. A – C and B – D.
d. A – D – B and A – D – C.
e. A – B – C – D.
The following questions refer to the figure above illustrating a tallgrass prairie food
chain.
A second level consumer is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
A fairly conserved gene is compared between a human, a chimpanzee, a bear and a
banana. How would you expect their DNA sequences to relate?
primary succession
Choose the most appropriate answer for each.
a. blending in and being hidden by the background
b. where an organism is generally located in a community
c. one organism benefits at another organism’s expense
d. traditionally a self-sustaining array of interacting organisms that is best suited for a
particular environment
e. lichens on newly hardened, newly cooled lava
f. robins and human populations
g. the yucca moth and the yucca
h. one species is eliminated from an area of niche overlap
i. tasty species resembles repugnant one
j. the process that leads from a pioneer community to a mature community
k. natural reforestation of burned-over forest
Primary growth
a. occurs along the sides of stems.
b. is dependent upon apical meristem.
c. increases the diameter of older plants.
d. is responsible for additions to woody parts.
e. fits all of these descriptions.
Olestra chips did not cause cramps at a higher rate than normal chips. That was the
_________ of this experiment
a. Hypothesis
b. Prediction
c. Control
d. Conclusion
Decomposers recycle materials at ____ trophic level(s).
a. the first
b. the second
c. the third
d. the fourth
e. any of these
Respond to the following statements in reference to the five stages or structures
involved in the development of the human egg.
a. oogonium
b. primary oocyte
c. secondary oocyte
d. polar body
e. corpus luteum
This structure divides by mitosis during the fetal stages of development until all of the
approximately two million potential eggs have been formed.
Choose the proper item below for the following statements.
a. Thomas Brock
b. Stanley Miller
c. Kwang Jeon
d. Lynn Margulis
e. Oliver Hardy
He/she discovered an organism that contains a heat-resistant enzyme.
If the DNA triplets are ATGCGT, the mRNA codons are
a. AUG-CGU.
b. ATG-CGT.
c. UAC-GCA.
d. UAG-CGU.
e. all of these.
All EXCEPT which of the following is true about chlamydia?
a. It is the most common bacterial STD.
b. It can be passed on from mother to child.
c. Most infected males are undiagnosed because they have no symptoms.
d. It can be treated with antibiotics.
e. Untreated males risk infertility.
In 2009, the U.S. generated ____ tons of trash.
a. 22 billion
b. 251 million
c. 29 million
d. 243 million
e. none of these
Malthus
Select the most appropriate choice for each person.
a. wrote Principles of Geology
b. developed the theory of catastrophism
c. believed that giraffes have long necks because their short-necked ancestors stretched
their necks and passed this change on to their offspring
d. was a naturalist who sailed on the Beagle and studied finches
e. wrote an essay relating population size to competition for limited resources
f. natural historian and author; early ideas of Chain of Being
Blood usually continues on from capillaries to enter ____ in its travel through the
human body.
a. arterioles
b. venules
c. arteries
d. veins
e. other capillaries
A graph of phenotypic variation similar to the illustration above strongly suggests
a. incomplete dominance.
b. codominance.
c. epistasis.
d. polygenic inheritance.
e. environmental effects on phenotype.
Select the best disorder listed below to match the following statements.
a. Galactosemia
b. Turner syndrome
c. Klinefelter’s syndrome
d. hemophilia A
e. Down syndrome
This disorder is an X-linked recessive trait.
Select the best choice for the following statements in reference to the five classes listed
below.
a. Cartilaginous fishes
b. Bony fishes
c. Amphibians
d. Reptilians
Some species of this class live in water but are not dependent upon an aquatic
environment.