Answered: Hello the problem is below:…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Question

Hello the problem is below:

Single-stranded DNA is a molecule that is composed of a sequence of nucleotides, which we will represent using a str consisting of the characters in 'C', 'G', 'T', 'A' (short for cytosine, guanine, adenine, thymine) . In order to replicate, DNA is transcribed into a complementary strand of messenger RNA, which is a similar sequence of nucleotides, and which we will represent as a str using the characters in 'C', 'G', 'U', 'A' (RNA does not use 'T' , instead it uses 'U' for uracil)

Each nucleotide in the DNA strand is transcribed into a nucleotide in the RNA molecule using the following transcription rules: 'C' 'G' , 'G' 'C' , 'T' 'A' , 'A' 'U' .

Implement a function DNAtoRNA in Python that:

accepts a single string argument representing a strand of DNA
the DNA string is valid if it only uses the characters in 'C', 'G', 'T', 'A'
if it contains any other character it is invalid DNA

Then

if the string represents valid DNA, the function returns a string representing thecomplementary strand of RNA,
or if the string represents invalid DNA, return the string 'ERROR'

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions