DNA and RNA Structures Quiz
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How does complementary base pairing facilitate the process of transcription?
A. It allows the DNA to unwind.
B. It ensures that the mRNA is an exact copy of the DNA.
C. It allows RNA polymerase to synthesize mRNA from the DNA template.
D. It prevents errors during DNA replication.
Explain the role of complementary base pairing in DNA replication.
A. It ensures that each new DNA molecule is an exact copy of the original.
B. It allows DNA to form a double helix structure.
C. It helps in the formation of RNA from DNA.
D. It prevents mutations during DNA replication.
What is the difference between DNA and RNA
A. DNA has uracil and RNA has thymine
B. DNA is involved in transcription and RNA is involved in translation
C. DNA contains thymine and RNA contains uracil
D. DNA is made of nucleotides and RNA is not
Which of the following statements is true about RNA?
A. RNA is double-stranded.
B. RNA contains the sugar deoxyribose.
C. RNA contains the base Thymine.
D. RNA is single-stranded.
Compare and contrast the roles of DNA and RNA in protein synthesis.
A. DNA is involved in transcription, while RNA is involved in translation.
B. DNA carries the genetic code, while RNA translates the code into proteins.
C. DNA is found in the cytoplasm, while RNA is found in the nucleus.
D. DNA is single-stranded, while RNA is double-stranded.
In DNA, which base pairs with Adenine?
A. Cytosine
B. Guanine
C. Thymine
D. Uracil
A Nucleotide is shown above. What part of the Nucleotide is labelled “2”?
A. Sugar
B. Phosphate
C. Nitrogenous Base
Given the DNA sequence 5′-GATTACA-3′, what would be the corresponding mRNA sequence?
A. 5′-CUAAUGU-3′
B. 3′-CUAAUGU-5′
C. 5′-GAUUACA-3′
D. 3′-GAUUACA-5′
Analyze the impact of a mutation that changes an Adenine to a Thymine in a DNA sequence.
A. It will always result in a non-functional protein.
B. It may result in a different amino acid being incorporated into a protein.
C. It will have no effect on the protein produced.
D. It will always cause a frameshift mutation.
What are the four nucleotide bases found in DNA?
A. Adenine, Thymine, Cytosine, Guanine
B. Adenine, Uracil, Cytosine, Guanine
C. Adenine, Thymine, Cytosine, Uracil
D. Adenine, Uracil, Cytosine, Thymine
Evaluate the consequences of a substitution mutation in the DNA sequence on the resulting protein.
A. It will always result in a non-functional protein.
B. It may result in a different amino acid being incorporated into the protein.
C. It will have no effect on the protein produced.
D. It will always cause a frameshift mutation.
Which of the following correctly describes the structure of DNA?
A. Single-stranded helix
B. Double-stranded helix
C. Triple-stranded helix
D. Quadruple-stranded helix
Describe the difference between DNA and RNA in terms of their structure.
A. DNA is single-stranded, while RNA is double-stranded.
B. DNA contains the sugar ribose, while RNA contains deoxyribose.
C. DNA contains Thymine, while RNA contains Uracil.
D. DNA is found in the cytoplasm, while RNA is found in the nucleus.
What is the complementary RNA base pairing for Adenine?
A. Thymine
B. Cytosine
C. Guanine
D. Uracil
Which RNA bases would pair with TACGAA in transcription?
A. AUGCUU
B. ATGCTT
C. GCATCC
D. GCAUCC