Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which of the following is NOT a difference between DNA and RNA?
A
DNA uses thymine as a base, while RNA uses uracil.
B
DNA contains deoxyribose sugar, while RNA contains ribose sugar.
C
DNA is double-stranded, whereas RNA is typically single-stranded.
D
DNA and RNA both have the same type of sugar in their structure.
Verified step by step guidance
1
Begin by identifying the structural components of DNA and RNA. DNA contains deoxyribose sugar, while RNA contains ribose sugar. This is a key difference between the two molecules.
Next, examine the nitrogenous bases used by DNA and RNA. DNA uses thymine as one of its bases, whereas RNA uses uracil instead of thymine. This is another fundamental difference.
Consider the strand structure of DNA and RNA. DNA is typically double-stranded, forming a double helix, while RNA is usually single-stranded. This structural difference is important in their functions.
Now, evaluate the statement given in the problem: 'DNA and RNA both have the same type of sugar in their structure.' Based on the previous steps, this statement is incorrect because DNA and RNA have different sugars (deoxyribose vs. ribose).
Conclude that the statement 'DNA and RNA both have the same type of sugar in their structure' is NOT a difference between DNA and RNA, as it is factually incorrect. The other options provided are true differences between DNA and RNA.