NRA INSTRUCTORS CLASS EXAM /APPROVED NRA INSTRUCTORS
CLASS ACTUAL EXAM 2026/2027 COMPREHENSIVE PRACTICE
QUESTIONS AND STUDY GUIDE COMPLETE ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED ANSWERS WITH
DETAILED RATIONALES (RELIABLE ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |BRAND
NEW! |INSTANT DOWNLOAD
1. The instructor and student each ____ as exercises are completed
and objectives achieved.
A) make note on an index card
B) verbally agree
C) sign off on the performance requirements checklist in the
appendix
D) none of the above
Correct Answer: C
Rationale: The NRA Instructor training program requires both the
instructor and student to sign off on the performance requirements
checklist in the appendix as each exercise is completed and objectives
are achieved. This serves as documented evidence of skill
demonstration and competency attainment throughout the course.
2. What is the difference between a ribonucleotide and a
deoxyribonucleotide?
,A) ribonucleotides contain a phosphate group
B) ribonucleotides have a hydroxyl group on the 2' carbon of their
sugar subunit
C) ribonucleotides contain a sugar with five carbon atoms
D) ribonucleotides have a hydrogen atom on the 1' carbon of their
sugar subunit
Correct Answer: B
Rationale: The key structural difference between ribonucleotides and
deoxyribonucleotides lies at the 2' carbon position of the sugar.
Ribonucleotides contain a hydroxyl (-OH) group on the 2' carbon,
whereas deoxyribonucleotides have a hydrogen atom at this position.
This difference makes RNA less stable than DNA and more
susceptible to hydrolysis.
3. Which nitrogenous base is found in RNA but not in DNA?
A) thymine
B) adenine
C) uracil
D) guanine
Correct Answer: C
,Rationale: Uracil is the pyrimidine base unique to RNA, replacing
thymine which is found in DNA. In RNA, uracil pairs with adenine
during base pairing, whereas in DNA, thymine pairs with adenine.
This base substitution is one of the fundamental chemical differences
between the two nucleic acids.
4. Which of the following is NOT a difference between RNA and
DNA?
A) One is typically single-stranded and the other is typically double-
stranded
B) One contains uracil and the other does not
C) One contains ribose sugar and the other contains deoxyribose
sugar
D) One is made of nucleotide monomers and the other one is not
Correct Answer: D
Rationale: Both RNA and DNA are nucleic acids composed of
nucleotide monomers linked by phosphodiester bonds. This is a
shared characteristic, not a difference. The actual differences include
sugar type (ribose vs. deoxyribose), base composition (uracil vs.
thymine), and typical strandedness (single vs. double).
, 5. Hairpin loops, base-paired stems, and bulges make up what part of
RNA's structure?
A) primary
B) secondary
C) tertiary
D) quaternary
Correct Answer: B
Rationale: RNA secondary structure refers to the local folding
patterns formed by intramolecular base pairing. Hairpin loops,
stems, and bulges are characteristic features of RNA secondary
structure that arise from complementary sequences within the same
RNA molecule pairing with each other. These structures are critical
for RNA function and stability.
6. Base-paired stems in RNA form which type of double helix?
A) form a B-type double helix
B) form a Z-type double helix
C) form an A-type double helix
D) do not form a double helix
Correct Answer: C
CLASS ACTUAL EXAM 2026/2027 COMPREHENSIVE PRACTICE
QUESTIONS AND STUDY GUIDE COMPLETE ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED ANSWERS WITH
DETAILED RATIONALES (RELIABLE ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |BRAND
NEW! |INSTANT DOWNLOAD
1. The instructor and student each ____ as exercises are completed
and objectives achieved.
A) make note on an index card
B) verbally agree
C) sign off on the performance requirements checklist in the
appendix
D) none of the above
Correct Answer: C
Rationale: The NRA Instructor training program requires both the
instructor and student to sign off on the performance requirements
checklist in the appendix as each exercise is completed and objectives
are achieved. This serves as documented evidence of skill
demonstration and competency attainment throughout the course.
2. What is the difference between a ribonucleotide and a
deoxyribonucleotide?
,A) ribonucleotides contain a phosphate group
B) ribonucleotides have a hydroxyl group on the 2' carbon of their
sugar subunit
C) ribonucleotides contain a sugar with five carbon atoms
D) ribonucleotides have a hydrogen atom on the 1' carbon of their
sugar subunit
Correct Answer: B
Rationale: The key structural difference between ribonucleotides and
deoxyribonucleotides lies at the 2' carbon position of the sugar.
Ribonucleotides contain a hydroxyl (-OH) group on the 2' carbon,
whereas deoxyribonucleotides have a hydrogen atom at this position.
This difference makes RNA less stable than DNA and more
susceptible to hydrolysis.
3. Which nitrogenous base is found in RNA but not in DNA?
A) thymine
B) adenine
C) uracil
D) guanine
Correct Answer: C
,Rationale: Uracil is the pyrimidine base unique to RNA, replacing
thymine which is found in DNA. In RNA, uracil pairs with adenine
during base pairing, whereas in DNA, thymine pairs with adenine.
This base substitution is one of the fundamental chemical differences
between the two nucleic acids.
4. Which of the following is NOT a difference between RNA and
DNA?
A) One is typically single-stranded and the other is typically double-
stranded
B) One contains uracil and the other does not
C) One contains ribose sugar and the other contains deoxyribose
sugar
D) One is made of nucleotide monomers and the other one is not
Correct Answer: D
Rationale: Both RNA and DNA are nucleic acids composed of
nucleotide monomers linked by phosphodiester bonds. This is a
shared characteristic, not a difference. The actual differences include
sugar type (ribose vs. deoxyribose), base composition (uracil vs.
thymine), and typical strandedness (single vs. double).
, 5. Hairpin loops, base-paired stems, and bulges make up what part of
RNA's structure?
A) primary
B) secondary
C) tertiary
D) quaternary
Correct Answer: B
Rationale: RNA secondary structure refers to the local folding
patterns formed by intramolecular base pairing. Hairpin loops,
stems, and bulges are characteristic features of RNA secondary
structure that arise from complementary sequences within the same
RNA molecule pairing with each other. These structures are critical
for RNA function and stability.
6. Base-paired stems in RNA form which type of double helix?
A) form a B-type double helix
B) form a Z-type double helix
C) form an A-type double helix
D) do not form a double helix
Correct Answer: C
