Question

*A DNA template sequence is 3’ ATG 5’. The complimentary mRNA codon sequence is:

A 5’ TAC 3’     

B 5’ UAC 3’     

C 3’ TAC 5’     

D 3’ UAC 5’

Answer 1

Transcription: It is the process where the DNA template strand gene code is transcripted into the mRNA with the help of the enzyme RNA polymerase.

Generally the complementary nucleotides are synthesized in the RNA sequence the complementary bases are:

(A & U/T) and ( G & C). The RNA sequence consists of the Uracil instead of the Thymin.

So from the sequence  3’ ATG 5’ of the DNA the transcribed mRNA sequence is- 5' UAC 3'

So the correct answer is- (B) 5' UAC 3'