Here is the first part of my code:

import random

def dnaMolecule(length): return ''.join(random.choice('GCAT') for x in range(length))

var = dnaMolecule(19) #choose length of GCAT print ('The molecules are:', var) #prints dnaMolecule(x - 1) characters

gcount = var.count('G') #counts g and c content seperately ccount = var.count('C') gc = gcount + ccount

total = len(var)

gcContent = (gc / total) * 100 #divides the amount of gc by # of characters in string print('The concentration of GC is:',"%.2f" % gcContent, '%') #%.2f rounds to 2 decimal places

What is the proper way for me to take the reverse complement of my random string in this code?

Part 4 The reverse complement of a nucleotide sequence (an organic molecule important in biochemistry) is the result of complementing the nucleotides with their opposing nucleotides (in base pairs), then reversing the order of the nucleotides. The base pairs are shown below. Symbol Symbol Nucleotide guanine cytosine adenine thymine Complement cytosine uanine thymine adenine Table A1 -Nucleotide Base Pairs Write a function (reverseComplement), which takes a sequence of nucleotides (a string, encoded by the symbols in the table A1), complements each nucleotide symbol (with its complement from table A1) and then reverses the symbols. The return value for the function should be the reverse complemented sequence. Do not use the built in function reversed), or [::-1 in your solution. Some examples are given in table A2 The basic steps of the function are 1. Reverse the string 2. Replace the letters with their equivalents in A1 Complement AACTCGATAGCTGATC GCTTACCG GCCAGGTTATCTAAGCTT Sample Inputs and Outputs for Part 4 Reverse Complement CTAGTCGATAGCTCAA GCCATTCG TTCGAATCTATTGGACCG Input Sequence TTGAGCTATCGACTAG CGAATGGC CGGTCCAATAGATTCGAA Table A2 Sample Output for Part 4: >>reverseComplement( 'TTGAGCTATCGACTAG') CTAGTCGATAGCTCAA >>>reverseComplement 'CGAATGGC) GCCATTCG >>> reverseComplement( 'CGGTCCAATAGATTCGAA') TTCGAATCTATTGGACCG