Which answer choice correctly describes the model of the mRNA strand being transcribed?
Understand the Problem
The question is asking which statement correctly describes the mRNA strand being transcribed from a DNA template during protein synthesis, specifically addressing the base pairing rules involving uracil.
Answer
Option G: mRNA is complementary to the DNA template strand; uracil pairs with adenine.
The correct answer is G: The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
Answer for screen readers
The correct answer is G: The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
More Information
During mRNA transcription, the mRNA strand is made based on the template DNA strand. In this process, adenine (A) in the DNA pairs with uracil (U) in mRNA instead of thymine (T).
Tips
A common mistake is thinking mRNA is an exact copy of DNA instead of being complementary.
