객관식
What is the significance of the sequence (order) of the nitrogen bases in DNA?
193
views
11. Translation
The Genetic Code
Multiple Choice
Which nitrogenous base is found in mRNA but not in DNA?
A
Uracil
B
Adenine
C
Cytosine
D
Thymine
검증된 단계별 안내1
Recall the four nitrogenous bases found in DNA: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
Recall the four nitrogenous bases found in RNA: Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).
Note that RNA contains Uracil (U) instead of Thymine (T), which is present in DNA.
Understand that Uracil pairs with Adenine during RNA transcription, replacing Thymine's role in DNA.
Conclude that the nitrogenous base found in mRNA but not in DNA is Uracil.
Related Videos
Related Practice
