28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
USABO Open Exam 2024 | 100% Correct Answers
| Verified | Latest 2025 Version WITH COMPLETE
SOLUTIONS GRADED A+ | ASSURED SUCCESS
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Terms in this set (43)
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,28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Why is myelin important in B
the nervous system?
A. It allows signals to
travel faster along axons
because depolarization
occurs only at myelinated
locations.
B. It allows signals to travel
faster along axons
because depolarization
occurs only at
nonmyelinated locations.
C. It bundles the dendrites
of adjacent neurons
together.
D. It increases capacitance
across the cell membrane,
which helps electrical
signals to leave the axons.
E. It traps
neurotransmitters,
increasing their
concentrations in the
synaptic cleft.
Which type of cytoskeletal D. Microtubules.
fiber is the primary
building block of
eukaryotic cilia and
flagella?
A. Actin microfilaments.
B. Intermediate filaments.
C. Keratin.
D. Microtubules.
E. RNA.
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,28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Which of the following C. Erythrocytes
human cell types contains
the LEAST amount of RNA
involved in splicing?
A. Lymphocytes
B. Lymphoblasts
C. Erythrocytes
D. Erythroblasts
E. Hepatocytes
Antimicrobial drugs, also A. Centrosome.
known as antibiotics,
inhibit the growth of
bacteria by targeting
cellular components
present in bacteria. Which
of the following cellular
components is NOT a valid
antimicrobial drug target?
A. Centrosome.
B. Ribosome.
C. Cell wall.
D. RNA polymerase.
E. DNA polymerase
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, 28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Which of the following C. Recognition of splice sites by the spliceosome is
statements concerning the based on the physical conformation of the mRNA
nature of post- strand, not on any specific consensus sequence.
transcriptional processing
of mRNA is INCORRECT?
A. The presence of introns
is a derived trait of
eukaryotes.
B. Mitochondrial mRNA
lacks a 5′ cap because
capping is a strictly
intranuclear process.
C. Recognition of splice
sites by the spliceosome is
based on the physical
conformation of the
mRNA strand, not on any
specific consensus
sequence.
D. In some genes, poly-A
tails can generate genetic
diversity by being added
at one of multiple possible
sites on the mRNA
transcript.
E. Both 5′ caps and poly-A
tails inhibit the
degradation of the mRNA
molecule in the cytosol.
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USABO Open Exam 2024 | 100% Correct Answers
| Verified | Latest 2025 Version WITH COMPLETE
SOLUTIONS GRADED A+ | ASSURED SUCCESS
Practice questions for this set
Learn
Studied 7 terms
Nice work. You’re doing brilliantly.
Continue studying in Learn
Terms in this set (43)
https://quizlet.com/988613798/usabo-open-exam-2024-100-correct-answers-verified-latest-2025-version-with-complete-solutions-graded-a-assured-s… 1/35
,28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Why is myelin important in B
the nervous system?
A. It allows signals to
travel faster along axons
because depolarization
occurs only at myelinated
locations.
B. It allows signals to travel
faster along axons
because depolarization
occurs only at
nonmyelinated locations.
C. It bundles the dendrites
of adjacent neurons
together.
D. It increases capacitance
across the cell membrane,
which helps electrical
signals to leave the axons.
E. It traps
neurotransmitters,
increasing their
concentrations in the
synaptic cleft.
Which type of cytoskeletal D. Microtubules.
fiber is the primary
building block of
eukaryotic cilia and
flagella?
A. Actin microfilaments.
B. Intermediate filaments.
C. Keratin.
D. Microtubules.
E. RNA.
https://quizlet.com/988613798/usabo-open-exam-2024-100-correct-answers-verified-latest-2025-version-with-complete-solutions-graded-a-assured-s… 2/35
,28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Which of the following C. Erythrocytes
human cell types contains
the LEAST amount of RNA
involved in splicing?
A. Lymphocytes
B. Lymphoblasts
C. Erythrocytes
D. Erythroblasts
E. Hepatocytes
Antimicrobial drugs, also A. Centrosome.
known as antibiotics,
inhibit the growth of
bacteria by targeting
cellular components
present in bacteria. Which
of the following cellular
components is NOT a valid
antimicrobial drug target?
A. Centrosome.
B. Ribosome.
C. Cell wall.
D. RNA polymerase.
E. DNA polymerase
https://quizlet.com/988613798/usabo-open-exam-2024-100-correct-answers-verified-latest-2025-version-with-complete-solutions-graded-a-assured-s… 3/35
, 28/12/2024, 20:22 USABO Open Exam 2024 | 100% Correct Answers | Verified | Latest 2025 Version WITH COMPLETE SOLUTIONS GRADED A+ |…
Which of the following C. Recognition of splice sites by the spliceosome is
statements concerning the based on the physical conformation of the mRNA
nature of post- strand, not on any specific consensus sequence.
transcriptional processing
of mRNA is INCORRECT?
A. The presence of introns
is a derived trait of
eukaryotes.
B. Mitochondrial mRNA
lacks a 5′ cap because
capping is a strictly
intranuclear process.
C. Recognition of splice
sites by the spliceosome is
based on the physical
conformation of the
mRNA strand, not on any
specific consensus
sequence.
D. In some genes, poly-A
tails can generate genetic
diversity by being added
at one of multiple possible
sites on the mRNA
transcript.
E. Both 5′ caps and poly-A
tails inhibit the
degradation of the mRNA
molecule in the cytosol.
https://quizlet.com/988613798/usabo-open-exam-2024-100-correct-answers-verified-latest-2025-version-with-complete-solutions-graded-a-assured-s… 4/35
