DNA and RNA Structures Quiz
Preview:
How does the structure of RNA differ from that of DNA in terms of sugar molecules?
A. RNA contains deoxyribose, while DNA contains ribose.
B. RNA contains ribose, while DNA contains deoxyribose.
C. Both RNA and DNA contain ribose.
D. Both RNA and DNA contain deoxyribose.
What is the significance of the double helix structure of DNA in terms of genetic stability?
A. It makes the DNA more flexible.
B. It allows for easy access to genetic information.
C. It provides a mechanism for error correction during replication.
D. It makes the DNA more susceptible to mutations.
What is the complementary RNA base pairing for Adenine?
A. Thymine
B. Cytosine
C. Guanine
D. Uracil
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
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.
What is the role of RNA polymerase during transcription?
A. It unwinds the DNA double helix.
B. It synthesizes a complementary RNA strand from a DNA template.
C. It splices introns from the pre-mRNA.
D. It transports mRNA to the ribosome.
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
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.
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.
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.
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
Predict the complementary DNA strand for the following sequence: 5′-ATCGGCTA-3′.
A. 5′-TAGCCGAT-3′
B. 3′-TAGCCGAT-5′
C. 5′-UAGCCGAU-3′
D. 3′-UAGCCGAU-5′
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.
A Nucleotide is shown above. What part of the Nucleotide is labelled “2”?
A. Sugar
B. Phosphate
C. Nitrogenous Base
What 3 things make up a nucleotide?
A. Sugar, Phosphate, Nitrogen Base
B. Sugar, Hydrogen, Carbon
C. Carbon, Phosphate, Nitrogen
D. mRNA, tRNA and rRNA
In DNA, which base pairs with Adenine?
A. Cytosine
B. Guanine
C. Thymine
D. Uracil
Which RNA bases would pair with TACGAA in transcription?
A. AUGCUU
B. ATGCTT
C. GCATCC
D. GCAUCC
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′
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.
Disclaimer:
Medical Quiz should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational and educational purposes only.