Question

Transcribe the following DNA sequence by listing the corresponding mRNA sequence.

DNA: CGA - TTA - CAG
mRNA: ?

Answer 1

In DNA these nitrogen bases always pair with each other.
Adenine - Thymine
Cytosine - Guanine
But for mRNA, thymine is replaced with uracil a similar base.

So the corresponding mRNA sequence is GCU-AAU-GUC

Answer 2

The corresponding mRNA will be G C U - A A U - G U C

Explanation:

During Transcription, DNA is used as a template to build mRNA. DNA uses four nitrogenous bases, adenine (A), guanine (G), thymine (T), and cytosine (C) in its code.

mRNA also uses four nitrogenous bases, however, instead of (T) thymine, it uses uracil (U) in its code.

In given DNA sequence nitrogenous sequence are:

C G A - T T A - C A G

↓

Corresponding mRNA sequence: G C U - A A U - G U C

Thus, the corresponding mRNA will be G C U - A A U - G U C