Sha256: b64579a5e30ab79c181c76a7b07098d3e33ff280544d93ba2a16ae4429f1518f
Contents?: true
Size: 850 Bytes
Versions: 159
Compression:
Stored size: 850 Bytes
Contents
#import "RNATranscriptionExample.h"
@implementation RNATranscription
- (NSString *)rnaFromDNAStrand:(NSString *)dnaStrand
{
NSDictionary *dnaToRNADict = @{ @"G" : @"C",
@"C" : @"G",
@"T" : @"A",
@"A" : @"U" };
NSMutableString *rnaStrand = [NSMutableString stringWithString:dnaStrand];
for (NSUInteger i = 0; i < [dnaStrand length]; i++) {
NSRange charRange = [dnaStrand rangeOfComposedCharacterSequenceAtIndex:i];
NSString *dnaNucleotide = [dnaStrand substringWithRange:charRange];
NSString *rnaNucleotide = dnaToRNADict[dnaNucleotide];
if (!rnaNucleotide) return nil;
[rnaStrand replaceCharactersInRange:charRange withString:rnaNucleotide];
}
return [rnaStrand copy];
}
@end
Version data entries
159 entries across 159 versions & 1 rubygems