C++

Main Program Flow: In main.cpp, write code that prompts user to enter 1 for Get GC Content, or 2 for Get DNA Complement. The program will prompt user for a DNA string and call either get gc content or get dna complement function and display the result. Program runs as long as user enters a y or Y.

FILE: dna.h 1. /* Write prototype for function get_gc_content that accepts a const reference string parameter and returns a double */ 2. /* Write prototype for function get_reverse_string that accepts a string parameter and returns a string */ 3. /* Write prototype for function get_dna_complement that accepts a string and returns a string */

FILE: dna.cpp

4. /* Write code for function get_gc_content that accepts a const reference string parameter and returns a double. Calculate GC content: Iterate string count Gs and Cs, divide count by string length. Return quotient. */

#include "dna.h"

5. /* Write code for function get_reverse_string that accepts a string parameter and returns a string reversed. */

6. /* Write prototype for function get_dna_complement that accepts a string dna and returns a string. Calculate dna complement: a. call function get_reverse_string(dna), save results to a local string variable b. iterate local string variable and replace A with T, T with A, C with G and G with C c. return string */

FILE: main.cpp

7. /* Write code that prompts user to enter 1 for Get GC Content, or 2 for Get DNA Complement. The program will prompt user for a DNA string and call either get gc content or get dna complement function and display the result. Program runs as long as user enters a y or Y. */

int main() {

return 0;

}

Function specifications

Function name	Parameters	Return Type
get_gc_content	const string& dna	double
get_dna_complement	string dna	string
reverse_string	string dna	string

Test Cases

Test function get_gc_content(string dna)

Value	Result
AGCTATAG	.375
CGCTATAG	.50

Test function get_reverse_string(string dna)

Value	Result
AGCTATAG	GATATCGA
CGCTATAG	GATATCGC

Test get dna complement

Value	Result
AAAACCCGGT	ACCGGGTTTT
CCCGGAAAAT	ATTTTCCGGG