CONCEPT QUIZ CHAPTER 10 EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Which of the following statements summarizes the process of transcription in cells?
A. The base sequence in a segment of DNA corresponding to a gene is used as a template to
form the complementary sequence in a segment of RNA.
B. The base sequence in a segment of DNA corresponding to a gene is used as a code to direct
the sequence of amino acids linked together to form a polypeptide.
C. The base sequence in an RNA molecule is used as a code to direct the sequence of amino
acids linked together to form a polypeptide.
D. An exact copy of the base sequence in a segment of DNA corresponding to a gene is
synthesized as a segment of RNA. - ANS A
How does the synthesis of an RNA strand during transcription differ from the synthesis of a DNA
strand during DNA replication?
A. Two different enzymes catalyze the polymerization reactions involved in DNA strand synthesis
during DNA replication and RNA strand synthesis during transcription.
B. A DNA template is used only during DNA replication and not during transcription of RNA.
C. The DNA double helix must unwind to allow DNA replication to proceed but can remain as an
intact helix during transcription.
D. Synthesis of a new strand of DNA during DNA replication proceeds in the 5ʹ-to-3ʹ direction,
whereas synthesis of RNA during transcription proceeds in the 3ʹ-to-5ʹ direction. - ANS A
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, Which of the following is the transcription product of the DNA sequence 5ʹ-TGCCA-3ʹ?
A.3ʹ-ACGGT-5ʹ
B. 5ʹ-ACGGT-3ʹ
C. 5ʹ-UCGGT-3ʹ
D. 3ʹ-ACGGU-5ʹ - ANS D
the promoter is not involved in elongation process of transcription - ANS
Which of the following is found in a snRNP
A.Intron
B. Consensus sequence
C. Spliceosome
D. Exon - ANS B
Which step occurs after pre-mRNA is cut at one exon-intron boundary?
A. Pre-mRNA is transcribed from DNA.
B. A spliceosome forms.
C. snRNPs bind to consensus sequences in pre-mRNA.
D. Introns are degraded - ANS D
A pre-mRNA molecule isolated from cells is found to bind to four snRNPs. What does this imply
about the structure of the pre-mRNA?
A. It contains two exons.
B. It contains four introns.
C. It contains four exons.
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QUESTIONS AND ANSWERS. VERIFIED
2026.
Which of the following statements summarizes the process of transcription in cells?
A. The base sequence in a segment of DNA corresponding to a gene is used as a template to
form the complementary sequence in a segment of RNA.
B. The base sequence in a segment of DNA corresponding to a gene is used as a code to direct
the sequence of amino acids linked together to form a polypeptide.
C. The base sequence in an RNA molecule is used as a code to direct the sequence of amino
acids linked together to form a polypeptide.
D. An exact copy of the base sequence in a segment of DNA corresponding to a gene is
synthesized as a segment of RNA. - ANS A
How does the synthesis of an RNA strand during transcription differ from the synthesis of a DNA
strand during DNA replication?
A. Two different enzymes catalyze the polymerization reactions involved in DNA strand synthesis
during DNA replication and RNA strand synthesis during transcription.
B. A DNA template is used only during DNA replication and not during transcription of RNA.
C. The DNA double helix must unwind to allow DNA replication to proceed but can remain as an
intact helix during transcription.
D. Synthesis of a new strand of DNA during DNA replication proceeds in the 5ʹ-to-3ʹ direction,
whereas synthesis of RNA during transcription proceeds in the 3ʹ-to-5ʹ direction. - ANS A
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Which of the following is the transcription product of the DNA sequence 5ʹ-TGCCA-3ʹ?
A.3ʹ-ACGGT-5ʹ
B. 5ʹ-ACGGT-3ʹ
C. 5ʹ-UCGGT-3ʹ
D. 3ʹ-ACGGU-5ʹ - ANS D
the promoter is not involved in elongation process of transcription - ANS
Which of the following is found in a snRNP
A.Intron
B. Consensus sequence
C. Spliceosome
D. Exon - ANS B
Which step occurs after pre-mRNA is cut at one exon-intron boundary?
A. Pre-mRNA is transcribed from DNA.
B. A spliceosome forms.
C. snRNPs bind to consensus sequences in pre-mRNA.
D. Introns are degraded - ANS D
A pre-mRNA molecule isolated from cells is found to bind to four snRNPs. What does this imply
about the structure of the pre-mRNA?
A. It contains two exons.
B. It contains four introns.
C. It contains four exons.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
