Bio 93 Final Exam Practice Questions and
Answers with Verified Solutions | Latest
Updated 2026
1)Researchers were investigating B
the
effects of bicoid in fruit fly
development. In one
experiment, they took a normally
developing embryo and injected
bicoid mRNA into the
posterior end of the embryo. What
result would they most likely
observe?
A. The embryo would develop with
a
normal posterior end and posterior
structures on the
anterior end
B. The embryo would develop with
a
normal anterior end and anterior
structures on the
posterior end
C. The embryo would develop with
anterior structures on the posterior
end and posterior
structures on the anterior end
,2) Inebriated (drunk) people have B
difficulty touching their noses with
their eyes closed. Which part
of the brain has been most
impaired
to bring about this difficulty?
A. Hypothalamus
B. Cerebellum
C. Cerebral cortex
D. Broca's area
E. Limbic system
3) Refer to the drawings in the A
figure
below of a single pair of
homologous chromosomes as
they
might appear during various
stages
of either mitosis or meiosis: Which
diagram represents
anaphase I of meiosis?
A. I
B. II
C. IV
D. V
4) Muscle cells differ from nerve A
cells mainly because they
A. Express different genes
B. Contain different genes
C. Use different genetic codes
D. Have unique ribosomes
, 5) Assume the DNA content of a A
diploid cell in the G1 phase of the
cell cycle is x. Then the DNA
content of the same cell at
metaphase of meiosis I will be
____
and the DNA content of a single
cell at metaphase of meiosis II will
be_____.
A. 2x, x
B. 0.5x, 0.25x
C. X, 2x
D. 0.5x, 2x
E. 2x, 0.5x
6) Herbicides are often used to kill C
weeds and unwanted plants from
farmland. Researchers
were investigating new types of
herbicides and assessed how well
they killed weeds. The researchers
found that the herbicides were
directly acting on the part of
photosynthesis involved with water
oxidation. What part of
photosynthesis were the
herbicides
acting on?
A. Photosystem I
B. The electron transport chain
between photosystems I and II
C. Photosystem II
D. The electron transport chain
after
photosystem II
E. The Calvin cycle
Answers with Verified Solutions | Latest
Updated 2026
1)Researchers were investigating B
the
effects of bicoid in fruit fly
development. In one
experiment, they took a normally
developing embryo and injected
bicoid mRNA into the
posterior end of the embryo. What
result would they most likely
observe?
A. The embryo would develop with
a
normal posterior end and posterior
structures on the
anterior end
B. The embryo would develop with
a
normal anterior end and anterior
structures on the
posterior end
C. The embryo would develop with
anterior structures on the posterior
end and posterior
structures on the anterior end
,2) Inebriated (drunk) people have B
difficulty touching their noses with
their eyes closed. Which part
of the brain has been most
impaired
to bring about this difficulty?
A. Hypothalamus
B. Cerebellum
C. Cerebral cortex
D. Broca's area
E. Limbic system
3) Refer to the drawings in the A
figure
below of a single pair of
homologous chromosomes as
they
might appear during various
stages
of either mitosis or meiosis: Which
diagram represents
anaphase I of meiosis?
A. I
B. II
C. IV
D. V
4) Muscle cells differ from nerve A
cells mainly because they
A. Express different genes
B. Contain different genes
C. Use different genetic codes
D. Have unique ribosomes
, 5) Assume the DNA content of a A
diploid cell in the G1 phase of the
cell cycle is x. Then the DNA
content of the same cell at
metaphase of meiosis I will be
____
and the DNA content of a single
cell at metaphase of meiosis II will
be_____.
A. 2x, x
B. 0.5x, 0.25x
C. X, 2x
D. 0.5x, 2x
E. 2x, 0.5x
6) Herbicides are often used to kill C
weeds and unwanted plants from
farmland. Researchers
were investigating new types of
herbicides and assessed how well
they killed weeds. The researchers
found that the herbicides were
directly acting on the part of
photosynthesis involved with water
oxidation. What part of
photosynthesis were the
herbicides
acting on?
A. Photosystem I
B. The electron transport chain
between photosystems I and II
C. Photosystem II
D. The electron transport chain
after
photosystem II
E. The Calvin cycle
