Epigenetic effects are the result of:
a. a change in the RNA sequence.
b. DNA methylation.
c. RNA methylation.
d. a change in the DNA sequence.
e. all of these option.
Which of the following is NOT true of xylem?
a. conducts water up the plant
b. conducts mineral ions up the plant
c. connects with roots
d. connects with leaves
e. transports sugars
Carpel
Choose the one most appropriate answer for each.
a. male spores of anthers
b. site where pollen tube usually penetrates the ovule
c. develops into a fruit at maturity
d. a 2n cell that will help form nutrients for the developing plant embryo
e. cluster of matured ovaries attached to a common receptacle
f. modified leaf with pigments and fragrance-producing cells
g. immature male gametophyte
h. female reproductive organ
i. landing platform for pollen
j. pollen-bearing structure
k. female spores of ovule
l. outermost whorl of leaf parts on a receptacle; generally green, but sometimes
pigmented
m. female gametophyte
n. matured ovaries of several flowers fused together into a single mass (for example,
pineapple, fig)
o. forms a seed at maturity
Species richness refers specifically to
a. the numbers of individuals of each species present.
b. the ability of larger animals to enrich themselves by successfully preying on smaller
ones.
c. the number of different species in the habitat.
d. the feeding levels at which the animals are located.
e. none of these.
Which forms the outermost whorl of flower parts?
a. sepals
b. petals
c. anthers
d. carpels
e. stamens
The following questions refer to the figure above illustrating the initial steps in the
formation of recombinant DNA.
Which panel of the figure contains the recombinant DNA plasmids that will be
incorporated into a host cell?
a. A
b. B
c. C
d. D
e. none of these
Respond to the following statements with reference to the five components of
respiratory systems listed below.
a. pharynx
b. larynx
c. trachea
d. bronchiole
e. alveolus
The voice box is located here.
Answer the following questions with reference to the muscles listed below.
a. pectoralis major
b. trapezius
c. quadriceps femoris
d. triceps
e. gastrocnemius
This is a principal muscle of the anterior upper leg.
Colchicine
Choose the most appropriate answer for each.
a. 3n; generally sterile
b. a chromosome segment is permanently transferred to a nonhomologous chromosome
c. (2n – 1); a zygote deprived of a chromosome
d. a repeat of a particular DNA sequence in the same chromosome or in nonhomologous
ones
e. (2n + 1); three chromosomes of the same kind are present in a set of chromosomes
f. a piece of the chromosome is inadvertently left out during the repair process
g. inhibits microtubule assembly; used in karyotyping
h. a chromosome segment that has been cut out and rejoined at the same place, but
backward
The yield from each pyruvate in the second stage of aerobic respiration includes
a. 4 NADH.
b. 1 FADH2.
c. 1 ATP.
d. 3 CO2.
e. all of these.
The cuticle
a. conserves water.
b. reduces absorption of carbon dioxide by the plant.
c. relegates transpiration to the stomata.
d. helps prevent wilting.
e. does all of these.
Which of the following is not produced in the light dependent reactions?
a. glucose.
b. oxygen.
c. ATP.
d. NADPH.
e. all of these are produced.
A(n) ____ property is a characteristic of a system that does not appear in any of its
component parts.
a. efferent
b. emergent
c. elective
d. energetic
e. living
The sclera is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Pheromones
a. are social signals.
b. are detected by the vomeronasal organ in reptiles and most mammals.
c. may serve as sex attractants.
d. are not detected or responded to by humans.
e. include all EXCEPT “are not detected or responded to by humans.”
The processes listed below represent major chemical pathways in photosynthesis.
Respond to the following statements with reference to these five processes.
a. light-dependent reactions
b. chemosynthetic reactions
c. carbon dioxide fixation
d. Calvin-Benson cycle
e. C4 pathway
This leads to the formation of a glucose-6-phosphate from two molecules of
phosphoglyceraldehyde.
Use the figure above for the following questions.
The figure labeled “B” shows a cross-section through a ____ and a vascular bundle.
a. monocot stem
b. eudicot stem
c. monocot root
d. eudicot root
e. none of these