NVCC BIO 101 EXAM 4 Questions and
Answers 100% Solved | Rated A+
1. In terms of some of the classical experiments that examined DNA structure,
which of the following is incorrectly paired?
A. Chargoff -- DNA chemical structure
B. Franklin -- 3D shape of DNA
C. Hershey and Chase -- DNA is the genetic material
D. Griffith -- DNA is composed of complementary strands
E. B & C - ✔✔D. Griffith -- DNA is composed of complementary strands
2. Which of the following correctly lists structures in order from smallest to
largest.
A. genome, nucleotide, gene, chromosome
B. nucleotide, gene, chromosome, genome
C. chromosome, genome, nucleotide, gene
D. gene, chromosome, genome, nucleotide
E. A & D - ✔✔B. nucleotide, gene, chromosome, genome
3. The process of translation occurs in the ____ and the outcome is ____.
A. cytoplasm, a protein
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,B. cytoplasm, a nucleotide
C. nucleus, RNA
D. nucleus, a protein
E. mitochondria, ATP - ✔✔A. cytoplasm, a protein
4. Which of the following is not true about RNA?
A. it is single stranded
B. it has 4 nitrogenous bases
C. it has a ribose sugar
D. it has thymine instead of uracil
E. it helps make proteins - ✔✔D. it has thymine instead of uracil
5. If a DNA strand with the sequence ATTCGA is transcribed and translated the
end result is:
A. TAAGCT
B. UAACGU
C. a protein
D. AUUCGA
E. RNA - ✔✔C. a protein
6. What is the role of mRNA?
A. It encodes a sequence of amino acids
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,B. It combines with proteins to form a ribosome
C. It carries amino acids
D. All of the above
E. None of the above - ✔✔A. It encodes a sequence of amino acids
7. What alterations occur before mRNA leaves the nucleus for translation?
A. a 5´ cap is added
B. a poly A tail is added
C. introns are removed
D. All of the above
E. Both A & B - ✔✔C. introns are removed
8. When functioning normally, lactose in the diet will bind to ____.
A. the lac operon
B. the repressor protein
C. the promoter
D. RNA polymerase
E. None of the above - ✔✔B. the repressor protein
9. Sickle cell anemia is caused by what type of mutation?
A. frame shift mutation
B. expanding repeat mutation
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, C. substitution mutation
D. nonsense mutation
E. B & D - ✔✔C. substitution mutation
10. What are different variations of the same gene, such as red and white petal
color of a flower?
A. alleles
B. transposable elements
C. mutagens
D. frameshift mutation
E. None - ✔✔A. alleles
11. What was the main outcome of Griffith´s experiments?
A. Bacteria cause pneumonia
B. A smooth polysaccharide coat is necessary for infection
C. Pneumonia always kills mice
D. Harmless bacteria can acquire the ability to cause disease
E. All of the above - ✔✔D. Harmless bacteria can acquire the ability to cause
disease
12. Which of the following is not true about DNA replication?
A. Replication occurs at multiple points simultaneously
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©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Answers 100% Solved | Rated A+
1. In terms of some of the classical experiments that examined DNA structure,
which of the following is incorrectly paired?
A. Chargoff -- DNA chemical structure
B. Franklin -- 3D shape of DNA
C. Hershey and Chase -- DNA is the genetic material
D. Griffith -- DNA is composed of complementary strands
E. B & C - ✔✔D. Griffith -- DNA is composed of complementary strands
2. Which of the following correctly lists structures in order from smallest to
largest.
A. genome, nucleotide, gene, chromosome
B. nucleotide, gene, chromosome, genome
C. chromosome, genome, nucleotide, gene
D. gene, chromosome, genome, nucleotide
E. A & D - ✔✔B. nucleotide, gene, chromosome, genome
3. The process of translation occurs in the ____ and the outcome is ____.
A. cytoplasm, a protein
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
,B. cytoplasm, a nucleotide
C. nucleus, RNA
D. nucleus, a protein
E. mitochondria, ATP - ✔✔A. cytoplasm, a protein
4. Which of the following is not true about RNA?
A. it is single stranded
B. it has 4 nitrogenous bases
C. it has a ribose sugar
D. it has thymine instead of uracil
E. it helps make proteins - ✔✔D. it has thymine instead of uracil
5. If a DNA strand with the sequence ATTCGA is transcribed and translated the
end result is:
A. TAAGCT
B. UAACGU
C. a protein
D. AUUCGA
E. RNA - ✔✔C. a protein
6. What is the role of mRNA?
A. It encodes a sequence of amino acids
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
,B. It combines with proteins to form a ribosome
C. It carries amino acids
D. All of the above
E. None of the above - ✔✔A. It encodes a sequence of amino acids
7. What alterations occur before mRNA leaves the nucleus for translation?
A. a 5´ cap is added
B. a poly A tail is added
C. introns are removed
D. All of the above
E. Both A & B - ✔✔C. introns are removed
8. When functioning normally, lactose in the diet will bind to ____.
A. the lac operon
B. the repressor protein
C. the promoter
D. RNA polymerase
E. None of the above - ✔✔B. the repressor protein
9. Sickle cell anemia is caused by what type of mutation?
A. frame shift mutation
B. expanding repeat mutation
3|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, C. substitution mutation
D. nonsense mutation
E. B & D - ✔✔C. substitution mutation
10. What are different variations of the same gene, such as red and white petal
color of a flower?
A. alleles
B. transposable elements
C. mutagens
D. frameshift mutation
E. None - ✔✔A. alleles
11. What was the main outcome of Griffith´s experiments?
A. Bacteria cause pneumonia
B. A smooth polysaccharide coat is necessary for infection
C. Pneumonia always kills mice
D. Harmless bacteria can acquire the ability to cause disease
E. All of the above - ✔✔D. Harmless bacteria can acquire the ability to cause
disease
12. Which of the following is not true about DNA replication?
A. Replication occurs at multiple points simultaneously
4|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
