1) single celled eukaryotic cells belong to which of the following domains?
a. eukarya
b. fungi
c. animalia
d. plantae
2) in the pine life cycle,
a. fertilization occurs shortly after pollination to produce the zygote.
b. the gametophyte generation is dominant and the sporophyte generation is
inconspicuous.
c. seed cones are smaller than pollen cones.
d. seed cones are located near the tips of higher branches and pollen cones develop near
the tips of lower branches.
e. the cone is the fruit that surrounds the seeds.
3) the transfer of pollen from an anther to the stigma of a carpel is
a. germination.
b. pollination.
c. fertilization.
d. coevolution.
4) the function of the polymerase chain reaction in genetic engineering is to
a. cut dna into many fragments.
b. carry dna into a new cell.
c. link together newly joined fragments of dna.
d. make multiple copies of a specific segment of dna.
e. separate fragments of dna by their length and electrical charges.
5) if the acrosome cap of the sperm were to fall off what would happen during
fertilization?
a. the corona radiata would not be weakened by the enzymes found in the acrosome cap
of the sperm.
b. the corona radiata would not be weakened by the fatty acidsfound in the acrosome
cap of the sperm.
c. the zona pellucida would depolarize at a faster rate than if the acrosome cap was
present.
d. none of the above would occur.
e. all of the above would occur.
6) in what order did these organisms diverge from the lineage of the common ancestral
primate?
a. h. neandertalensis, h. ergaster, h. habilis, gorillas and chimpanzees, hominins
b. prosimians, monkeys, gibbons, orangutans, gorillas and chimpanzees, hominins
c. monkeys, gibbons, prosimians, orangutans, h. habilis, h. ergaster, humans
d. gibbons, lemurs, tarsiers, h. habilis, monkeys, h. neandertalensis, hominins
7) characteristics of eudicots include all except
a. two cotyledons.
b. leaves with netted veins.
c. woody or herbaceous plants.
d. flower parts in fours and fives.
e. vascular bundles arranged irregularly in the stem.
8) coupling occurs when the energy released by an exergonic reaction is:
a. used to drive another exergonic reaction.
b. used to drive an endergonic reaction.
c. lost as nonusable heat to the environment.
d. used to decrease the entropy of the universe.
e. all of the choices are correct.
9) during mendel’s pea plants experiment he discovered that the trait for tallness is
dominant to that of shortness. which of the following statements is correct?
a. tall = tt or tt while short = tt
b. tall = tt or tt while short = tt
c. tall = tt while short = tt or tt
d. none of these statements are correct.
10) which of the following problems can arise during posttransriptional control?
a. differential splicing of exons that can lead to an altered gene expression.
b. not excising all of introns from the pre-mrna strand, leaving fragments to be joined
with the exons.
c. excising an exon from the pre-mrna strand.
d. all of these are errors that can occur during posttranscriptional control of gene
expression.
11) which of the following groups of chordates would be most impacted by a decrease
in the phytoplankton levels in the ocean?
a. cephalochordates & urochordates
b. cartilaginous fish & cephalochordates
c. amphibians & urochodrates
d. molluscs & cephalochordates
12) the polar body is
a. another name for an egg cell.
b. a precursor cell that becomes an egg cell.
c. a nonfunctional cell rudiment formed at the same time as an egg cell.
d. the cell produced when fertilization occurs.
13) a pressurized airplane cabin and an oxygen tent over a patient in a hospital both
impact the respiration rate of a person. how do these compare?
a. the oxygen tent and the airplane increase the air pressure to increase the pco2.
b. the oxygen tent and airplane cabin pressure lowers the partial pressures for normal
breathing.
c. both use the same mechanism to force hemoglobin to increase affinity for oxygen.
d. the oxygen tent increases concentration of o2 while the airplane maintains total air
pressure without changing concentrations.
14) which of these processes occurs in the cytosol?
a. the citric acid cycle
b. glycolysis
c. the electron transport system
d. the preparatory reaction