Counting Nucleotides Task one

def count_nuc(nucs):
    cnt = {}
    cnt['A'] = 0
    cnt['C'] = 0
    cnt['G'] = 0
    cnt['T'] = 0
    for nuc in nucs:
        cnt[nuc] += 1
    return cnt

def RNA_Transcription(rna):
    dna = ''
    for nuc in rna:
        if nuc == 'T':
            dna += 'U'
        else:
            dna += nuc
    return dna

def Reverse_Complement(dna):
    rc_dna = ''
    com = {'G': 'C', 'C': 'G', 'A': 'T', 'T': 'A'}
    for nuc in dna:
        rc_dna = com[nuc] + rc_dna
    return rc_dna

# Task 1
#cnts = count_nuc('CGCATTTCTAGCATGTATCTATGGCACCCTGCTTTGGTGACGATGTATAGGATTATGTTCAGATACTTTACCCTGAGTGAACGGCGCTGAACGGTGCCTTTATATTTGCGTATTGGAAGTTTAATTACCTCCATTCGAATGTAAAATACCCGAGTACGAAAAGAACCATCACGAGCCTTCAGTCTGAAAGCCGGGTCGTGCACGAGCTTGACTGTGTCCTGTACGACATCCCAAACTAATTGCATGGCGCCAGGGTTCGGTTTAACGGCTGGTGGACCGCGGGCCTAAGAGTTCATTAGCCCGGCTTGCGTGCCGAACACAATAAGAAGCCCTTCTCCAATCTGCCTCGCGGATTGTGAACACCTTCTGTAGTGTTGAAAGTCGCCGTATTACTGAGAAAGCCTCCACATACGTCAGGGCTGGAGCTAATAGCACGGTCGGAGAGATCATGGGGGTGCTAGAGGTAAATATACCGAGCGTTCTACACGGTCTTGCGCCCGTCAATATGTGCTCGTTAGTTCCCGGATAAGCTAACGCTGAGAGAATATACAGCATTCGGGTCTACGGCTTTATTTCACATTTCCAGCCCAATGAAACGGACGAGCACGGGCAGTTATGATTCGGCACGTAGGGAGGTCAAGTCAAGCTAATGGAATCATCCAGTCAGGATGGAATTCTGATAACGAGACAGGCATTACGCGTAATCAGTGTTTGTAAGTTCTTACGTGACCTTAGCGGGCCCTCGTGCGTACCGGCCGGGAGACTTATATATAACGCATTCACTATTCCTAACCACTTAGCGTAGTCCGGTACGCAGCGCTAATCGTCGTAAGGAAGTTGGTTCGTCTGACAGCGTATAAGTCGCGACC')
#print cnts['A'], cnts['C'], cnts['G'], cnts['T']

# Task 2
#print RNA_Transcription('TTCTGACTAGCACCTCGTTGAATGAGCGCTTATCAGAAAGGGCAGTCGTCCCGCCGAGGAAAGACACCTGGCCGAAGTTCAAGTATGAATTTAATAGTTCGTTATTCACCCCAACCTGTCCAGAAACGCGTCCCTCAGGCTCATGGACCATAGTCTCCCCGACAGGGTAGATCTGCCCCACCCCGCACTCATGAATATACGCCATATTGTACTCGGTCCGAATGGAGGTGAGTGCTAGTTCAGGGCCGAGGAATCTGGATCGCCTAGAGGAAGTTGAATATTTTCGCCAGGAATGGATAGGCACTACCTATTCGTCAGTCACCGTCAGGGACCAACGGGAATCTCGGTAGTGGGTGCTCACAGCTAGTAGCGTCTGGTCACGGGACCTTGAATGGTGCCGTCTTTGCTAAAGCAGCTTCTCCTTACAGTCCTGAATACGAGAGTCGCGGAGCGGGCGACGCGCAGTGGGCAACCGCGCGGTGGATCCGTCTACTCTATTCATGCCTGAGTTGGTGGTGACACGACGTAAGAACTTGAAATCCTGATCGGGCGGGGCGTTGACCGTAAATCGCTACGGTGTGGTTTGTAATTGTTAAGTGGAATGGATGCGGGGTGCGGGATGACCTAAGCCTAGGAAATCAATTTCGTGTGCTCACACATACGGTGTGCCACTTAGACATAGAGTTAACTGACCGGTGTTTCACCTTCAGAGCAGACTTTTCAGCCTTTACATCGCATAATAGAACCGTGCCTCGAGGCCCGTCTCCAAAACGCGTTTATAGTTTTACTGGTTAGTCCGGGCGGGGGGTCTATGTAGTTCAAAGGCCGAAGCCGGGACAGTCCGTGCGACGTGCTACCTAATTTCGTGCAATTTTCGGAACGATAGCTTGACCTTTTCTCGGAGTCTTGGGTTCTCTTAGTCAATCTCGGTTCCGACACTTTCTGGGTTCGCTGAGCTCCACGTGGACACCTGAGTTGCCAGAGTGCGGCCGTACTG')

#Task 3
print Reverse_Complement('TCGAAAGACGAAGCGATGGACACGTCTAACGACTATGGAATAGACTTTTCTAGATGAAAGTAAGATCACTGTGTAGCCGGAGCTAGTCTGGACCACTAGTGTTGTCACGAACAGCTGGTCGCGATGCCATCTTGGCCCCCAACCCTCCTAATTGTCGCACCCCTAGATAATCGCCGTCCACACAGACGAGACCAATGGTCCCGACGACATCATTGAGGAAAATGCAGCTTCAATCTAGTGTGCTAAAGGTAAGTAGGTGAGCTCCACCGGGTATTACAGTCTAAGTCCTTGGTGATCTGTATAGTGAGCAATGGAGCAACCTAAATCCCACCGTCTCGATTTCCTGTACGGTAATTGCGATGGAAACCATCCGAAGTTGCCGAGAGCCGGGAGTACTCGACTAGGTACTTACCCAAAGGCAGAGCATTTGACACGTGTAGCTGCGCTGATTCCACATCCATGTTAGTTATTCCAAGGTGTCCCAATAGACGCATGGCTAGGCAACCACGTCCATAGAACCGGGCGGTCAACTAGTCGCTGATGGACGAGCCATGCCGACCCCCGTTATTAGGTACCGTGCGTATGGACTTACGTTGTGCTCTAGTCGCATACCACGGCTGCCGAAACTACGCTCCTTTCGCATAGCGGATGGGCTTTTTCGTCCCAGTCAAAGTCCCGCTCAATTGATGATGAGGCACACACAGCGAGTGAAGCACTGTGGGCGCCGGCGTCACGGAGTACCATTTAGCCATTGAGCTAAGTAAGCTCACCATGGAAATACGACATCTTCAAATGTGAAGCCTACGGGTTTAATGCCATACCACTCTGAAGGC')

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