Rosalind is a platform for learning bioinformatics and programming through problem solving. Take a tour to get the hang of how Rosalind works.

Problems: 228 (total), users: 19241, attempts: 316781, correct: 184277
ID Title Solved By Correct Ratio
DNA Counting DNA Nucleotides 12343
RNA Transcribing DNA into RNA 10965
REVC Complementing a Strand of DNA 10005
FIB Rabbits and Recurrence Relations 4838
GC Computing GC Content 6089
HAMM Counting Point Mutations 6947
IPRB Mendel's First Law 3410
PROT Translating RNA into Protein 5232
SUBS Finding a Motif in DNA 5504
CONS Consensus and Profile 3242
FIBD Mortal Fibonacci Rabbits 2175
GRPH Overlap Graphs 2684
IEV Calculating Expected Offspring 2131
LCSM Finding a Shared Motif 2229
LIA Independent Alleles 1098
MPRT Finding a Protein Motif 1241
MRNA Inferring mRNA from Protein 2141
ORF Open Reading Frames 1598
PERM Enumerating Gene Orders 3453
PRTM Calculating Protein Mass 2657
REVP Locating Restriction Sites 1890
SPLC RNA Splicing 1891
LEXF Enumerating k-mers Lexicographically 1929
LGIS Longest Increasing Subsequence 663
LONG Genome Assembly as Shortest Superstring 835
PMCH Perfect Matchings and RNA Secondary Structures 647
PPER Partial Permutations 1090
PROB Introduction to Random Strings 1047
SIGN Enumerating Oriented Gene Orderings 1302
SSEQ Finding a Spliced Motif 1221
TRAN Transitions and Transversions 1040
TREE Completing a Tree 1073
CAT Catalan Numbers and RNA Secondary Structures 256
CORR Error Correction in Reads 569
INOD Counting Phylogenetic Ancestors 810
KMER k-Mer Composition 894
KMP Speeding Up Motif Finding 841
LCSQ Finding a Shared Spliced Motif 602
LEXV Ordering Strings of Varying Length Lexicographically 1145
MMCH Maximum Matchings and RNA Secondary Structures 335
PDST Creating a Distance Matrix 641
REAR Reversal Distance 384
RSTR Matching Random Motifs 444
SSET Counting Subsets 803
ASPC Introduction to Alternative Splicing 482
EDIT Edit Distance 481
EVAL Expected Number of Restriction Sites 349
MOTZ Motzkin Numbers and RNA Secondary Structures 180
NWCK Distances in Trees 341
SCSP Interleaving Two Motifs 264
SETO Introduction to Set Operations 646
SORT Sorting by Reversals 303
SPEC Inferring Protein from Spectrum 550
TRIE Introduction to Pattern Matching 368
CONV Comparing Spectra with the Spectral Convolution 353
CTBL Creating a Character Table 188
DBRU Constructing a De Bruijn Graph 345
EDTA Edit Distance Alignment 349
FULL Inferring Peptide from Full Spectrum 273
INDC Independent Segregation of Chromosomes 288
ITWV Finding Disjoint Motifs in a Gene 122
LREP Finding the Longest Multiple Repeat 236
NKEW Newick Format with Edge Weights 238
RNAS Wobble Bonding and RNA Secondary Structures 194
AFRQ Counting Disease Carriers 233
CSTR Creating a Character Table from Genetic Strings 140
CTEA Counting Optimal Alignments 124
CUNR Counting Unrooted Binary Trees 140
GLOB Global Alignment with Scoring Matrix 247
PCOV Genome Assembly with Perfect Coverage 268
PRSM Matching a Spectrum to a Protein 212
QRT Quartets 113
SGRA Using the Spectrum Graph to Infer Peptides 178
SUFF Encoding Suffix Trees 162
CHBP Character-Based Phylogeny 80
CNTQ Counting Quartets 77
EUBT Enumerating Unrooted Binary Trees 61
GASM Genome Assembly Using Reads 153
GCON Global Alignment with Constant Gap Penalty 167
LING Linguistic Complexity of a Genome 96
LOCA Local Alignment with Scoring Matrix 171
MEND Inferring Genotype from a Pedigree 121
MGAP Maximizing the Gap Symbols of an Optimal Alignment 94
MREP Identifying Maximal Repeats 86
MULT Multiple Alignment 94
PDPL Creating a Restriction Map 100
ROOT Counting Rooted Binary Trees 128
SEXL Sex-Linked Inheritance 174
SPTD Phylogeny Comparison with Split Distance 91
WFMD The Wright-Fisher Model of Genetic Drift 136
ALPH Alignment-Based Phylogeny 56
ASMQ Assessing Assembly Quality with N50 and N75 127
CSET Fixing an Inconsistent Character Set 66
EBIN Wright-Fisher's Expected Behavior 114
FOUN The Founder Effect and Genetic Drift 111
GAFF Global Alignment with Scoring Matrix and Affine Gap Penalty 150
GREP Genome Assembly with Perfect Coverage and Repeats 89
OAP Overlap Alignment 69
QRTD Quartet Distance 44
SIMS Finding a Motif with Modifications 90
SMGB Semiglobal Alignment 69
KSIM Finding All Similar Motifs 31
LAFF Local Alignment with Affine Gap Penalty 87
OSYM Isolating Symbols in Alignments 51
RSUB Identifying Reversing Substitutions 48