Question

2.If the following DNA sequence was the template for transcription, what RNA sequence would be synthesized?

3' GTCCATCAT 5'

Answer 1

Transcription is the process of producing RNA from the DNA template. In RNA the complementary sequence are

A-U

T-A

G-C

C-G.

In RNA uracil is the complementary nucleotide of adenine instead of thymine.

So, when adenine is present in the DNA then Uracil will be added to the RNA.

when thymine is present in the DNA then adenine will be added to the RNA.

when guanine is present in the DNA then cytosine will be added to the RNA.

when cytosine is present in the DNA then guanine will be added to the RNA.

Therefore if the DNA strand is 3'--GTCCATCAT- 5'

then its complementary RNA will be 5'--CAGGUAGUA--3'

The direction of RNA synthesis is 5' to 3'direction