Question
Biology Question on Molecular Basis of Inheritance
During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be
A
TCTGG
B
UAUGC
C
UATGC
D
TATGC
Answer
UAUGC
Explanation
Solution
In transcription, when the DNA strand being transcribed has the nucleotide sequence ATACG, the corresponding nucleotide sequence in the mRNA will be UAUGC. This is because RNA uses adenine (A), cytosine (C), guanine (G), and uracil (U) as its bases. It's important to note that adenine and guanine are classified as purines, while cytosine and uracil are pyrimidines. These bases in RNA form complementary pairs with their counterparts in DNA, a process known as complementary base pairing.